Hiermenus Go Forth, X - DHTML Lab | 10

Hiermenus Go Forth, X:
Version 4.0.3 - The Complete Script (Full-Window)

The external HM JavaScript file for Internet Explorer 4.x for Windows (HM_ScriptIE4.js in the download.)

/*HM_ScriptIE4.js
* by Peter Belesis. v4.0.3 010123
* Copyright (c) 2001 Peter Belesis. All Rights Reserved.
* Originally published and documented at https://www.dhtmlab.com/
* Available solely from INT Media Group. Incorporated under exclusive license.
* Contact [email protected] for more information.
*/
HM_a_Parameters = [
    ["MenuWidth",          150],
    ["FontFamily",         "Arial,sans-serif"],
    ["FontSize",           10],
    ["FontBold",           false],
    ["FontItalic",         false],
    ["FontColor",          "black"],
    ["FontColorOver",      "white"],
    ["BGColor",            "white"],
    ["BGColorOver",        "black"],
    ["ItemPadding",        3],
    ["BorderWidth",        2],
    ["BorderColor",        "red"],
    ["BorderStyle",        "solid"],
    ["SeparatorSize",      1],
    ["SeparatorColor",     "yellow"],
    ["ImageSrc",           "tri.gif"],
    ["ImageSrcLeft",       "triL.gif"],
    ["ImageSize",          5],
    ["ImageHorizSpace",    0],
    ["ImageVertSpace",     0],
    ["KeepHilite",         false],
    ["ClickStart",         false],
    ["ClickKill",          true],
    ["ChildOverlap",       20],
    ["ChildOffset",        10],
    ["ChildPerCentOver",   null],
    ["TopSecondsVisible",  .5],
    ["StatusDisplayBuild", 1],
    ["StatusDisplayLink",  1],
    ["UponDisplay",        null],
    ["UponHide",           null],
    ["RightToLeft",        false],
    ["CreateTopOnly",      0],
    ["ShowLinkCursor",     false]
]
HM_MenuIDPrefix = "HM_Menu";
HM_ItemIDPrefix = "HM_Item";
HM_ArrayIDPrefix = "HM_Array";
function HM_f_StringTrim(){
    var TestString = this;
    var SpaceChar  = " ";
    while (TestString.charAt(0) == SpaceChar) {TestString = TestString.substr(1)};
    while (TestString.charAt(TestString.length-1) == SpaceChar) {TestString = TestString.substr(0,TestString.length-1)};
    return TestString.toString();
}
HM_a_BadChars = [".","/"," ",",","-"];
function HM_f_StringStrip(){
    var TestString = this;
    var BadChar;
    for(var i=0;i<HM_a_BadChars.length;i++) {
        BadChar = HM_a_BadChars[i];
        BadCharIndex = TestString.lastIndexOf(BadChar);
        if(BadCharIndex!=-1) TestString = TestString.substr(BadCharIndex + 1);
    }
    return TestString.toString();
}
String.prototype.trim = HM_f_StringTrim;
String.prototype.strip = HM_f_StringStrip;
function HM_f_AssignParameters(paramname,defaultvalue){
    var FullParamName = "HM_" + paramname;
    if (typeof eval("window.HM_PG_" + paramname) == "undefined") {
        if (typeof eval("window.HM_GL_" + paramname) == "undefined") {
            eval(FullParamName + "= defaultvalue");
        }
        else {
            eval(FullParamName + "= HM_GL_" + paramname);
        }
    }
    else {
        eval(FullParamName + "= HM_PG_" + paramname);
    }
    var TestString = eval(FullParamName);
    if(eval("typeof(TestString)") == "string") {
        TestString = TestString.trim();
        if(TestString.length == 0) {
            eval(FullParamName + "= null");
            return;
        }
        if(TestString.charAt(0)=="#")return;
        TestString = TestString.strip();
    }
    if (eval("typeof(" + TestString +")") != 'undefined') {
        eval(FullParamName + "= eval("+ FullParamName +")");
    }
}
for (i=0;i<HM_a_Parameters.length;i++) {
    HM_f_AssignParameters(HM_a_Parameters[i][0],HM_a_Parameters[i][1]);
}
HM_ChildPerCentOver = (isNaN(parseFloat(HM_ChildPerCentOver))) ? null : parseFloat(HM_ChildPerCentOver)/100;
function HM_f_ValidateArray(arrayname){
    return ((typeof eval("window." + arrayname) == "object") && (eval(arrayname).length > 1))
}
if(!window.HM_a_TreesToBuild) {
    HM_a_TreesToBuild = [];
    for(i=1; i<100; i++){
        if(HM_f_ValidateArray(HM_ArrayIDPrefix + i)) HM_a_TreesToBuild[HM_a_TreesToBuild.length] = i;
    }
}
HM_CurrentArray = null;
HM_CurrentTree  = null;
HM_CurrentMenu  = null;
HM_CurrentItem  = null;
HM_a_TopMenus = [];
HM_AreLoaded = false;
HM_AreCreated = false;
HM_BeingCreated = false;
HM_UserOverMenu = false;
HM_HideAllTimer = null;
HM_TotalTrees = 0; 
HM_ZIndex = 5000;
function propertyTransfer(){
    this.obj = eval(this.id + "Obj");
    for (temp in this.obj) {this[temp] = this.obj[temp]}
}
function HM_f_StartIt() {
    if((typeof(document.body) == "undefined") || (document.body == null)) return;
    HM_AreLoaded = true;
    if (HM_ClickKill) {
        HM_f_OtherMouseDown = (document.onmousedown) ? document.onmousedown : new Function;
        document.onmousedown = function(){HM_f_PageClick();HM_f_OtherMouseDown()}
    }
    else {
        HM_TopMilliSecondsVisible = HM_TopSecondsVisible * 1000;
    }
    HM_f_MakeTrees();
}
function HM_f_AssignTreeParameters(arrayvalue,defaultvalue){
    var ValueIsString = (typeof arrayvalue == "string");
    if (ValueIsString) arrayvalue = arrayvalue.trim();
    var ValueIsNull = ((arrayvalue == null) || (typeof arrayvalue == "undefined") || (ValueIsString && arrayvalue.length == 0));
    if(ValueIsNull) return defaultvalue;
    var TestString = arrayvalue;
    if(eval("typeof(TestString)") == "string") {
        if(TestString.charAt(0)=="#")return arrayvalue;
        TestString = TestString.strip()
    }
    if (eval("typeof("+ TestString+" )") != 'undefined') {
        eval("arrayvalue = eval(arrayvalue)");
    }
    return arrayvalue;
}
function HM_f_MakeTrees(){
    HM_BeingCreated = true;
    var TreeParams = null;
    var TreeHasChildren = false;
    var ItemArray = null;
    for(var t=0; t<HM_a_TreesToBuild.length; t++) {
        if(!HM_f_ValidateArray(HM_ArrayIDPrefix + HM_a_TreesToBuild[t])) continue;
        HM_CurrentArray = eval(HM_ArrayIDPrefix + HM_a_TreesToBuild[t]);
        TreeParams = HM_CurrentArray[0];
        TreeHasChildren = false;
        for(var i=1; i<HM_CurrentArray.length; i++) {
            ItemArray = HM_CurrentArray[i];
            if(ItemArray[ItemArray.length-1]) {TreeHasChildren = true; break}
        }
        HM_CurrentTree = {
            MenuWidth        : MenuWidth = HM_f_AssignTreeParameters(TreeParams[0],HM_MenuWidth),
            MenuLeft         : MenuLeft = HM_f_AssignTreeParameters(TreeParams[1],null),
            MenuTop          : MenuTop = HM_f_AssignTreeParameters(TreeParams[2],null),
            ItemWidth        : ItemWidth = MenuWidth - (HM_BorderWidth*2),
            ItemTextWidth    : TreeHasChildren ? (ItemWidth - (HM_ImageSize + HM_ImageHorizSpace + HM_ItemPadding)) : ItemWidth,
            HorizOffsetRight : HorizOffsetRight = (parseInt((HM_ChildPerCentOver != null) ? (HM_ChildPerCentOver  * ItemWidth) : HM_ChildOverlap)),
            HorizOffsetLeft  : (MenuWidth - HorizOffsetRight),
            FontColor        : HM_f_AssignTreeParameters(TreeParams[3],HM_FontColor),
            FontColorOver    : HM_f_AssignTreeParameters(TreeParams[4],HM_FontColorOver),
            BGColor          : HM_f_AssignTreeParameters(TreeParams[5],HM_BGColor),
            BGColorOver      : HM_f_AssignTreeParameters(TreeParams[6],HM_BGColorOver),
            BorderColor      : HM_f_AssignTreeParameters(TreeParams[7],HM_BorderColor),
            SeparatorColor   : HM_f_AssignTreeParameters(TreeParams[8],HM_SeparatorColor),
            TopIsPermanent   : ((MenuLeft == null) || (MenuTop == null)) ? false : HM_f_AssignTreeParameters(TreeParams[9],false),
            TopIsHorizontal  : TopIsHorizontal = HM_f_AssignTreeParameters(TreeParams[10],false),
            TreeIsHorizontal : TreeHasChildren ? HM_f_AssignTreeParameters(TreeParams[11],false) : false,
            PositionUnder    : (!TopIsHorizontal || !TreeHasChildren) ? false : HM_f_AssignTreeParameters(TreeParams[12],false),
            TopImageShow     : TreeHasChildren ? HM_f_AssignTreeParameters(TreeParams[13],true)  : false,
            TreeImageShow    : TreeHasChildren ? HM_f_AssignTreeParameters(TreeParams[14],true)  : false,
            UponDisplay      : HM_f_AssignTreeParameters(TreeParams[15],HM_UponDisplay),
            UponHide         : HM_f_AssignTreeParameters(TreeParams[16],HM_UponHide)
        }
        HM_CurrentMenu = null;
        HM_f_MakeMenu(HM_a_TreesToBuild[t]);
        HM_a_TopMenus[HM_TotalTrees] = HM_CurrentTree.treeParent;
        HM_TotalTrees++;
        if(HM_CurrentTree.TopIsPermanent){
            with(HM_CurrentTree.treeParent) {
                moveTo(HM_CurrentTree.MenuLeft,HM_CurrentTree.MenuTop);
                style.zIndex = 5000;
                style.visibility = "visible";
            }
        }
    }
    if(HM_StatusDisplayBuild) status = HM_TotalTrees + " Hierarchical Menu Trees Created";
    HM_AreCreated = true;
    HM_BeingCreated = false;
}
function HM_f_GetItemDivStr(itemid,disptext,hasmore){
    var WidthValue = HM_CurrentMenu.isHorizontal ? (ItemElement.isLastItem) ? (HM_CurrentTree.MenuWidth - HM_BorderWidth - HM_SeparatorSize) : (HM_CurrentTree.MenuWidth - HM_BorderWidth) : HM_CurrentTree.ItemWidth;
    var TempString = "<DIV ID=" + itemid + " STYLE='position:absolute;width:" + WidthValue + "px'>";
    if(HM_CurrentMenu.showImage) {
        var FullPadding  = (HM_ItemPadding*2) + HM_ImageSize + HM_ImageHorizSpace;
    }
    if(hasmore && HM_CurrentMenu.showImage) {
        var ImgPosition = HM_RightToLeft ? "absolute;" : "relative;";
        var ImgSrc      = HM_RightToLeft ? HM_ImageSrcLeft : HM_ImageSrc;
        var ImgHSpace   = (HM_RightToLeft) ? 0 : HM_ItemPadding;
        var ImgStyle    = HM_RightToLeft ? ("left:"+ (HM_ItemPadding + HM_ImageHorizSpace) + "px;top:"+ (HM_ItemPadding + HM_ImageVertSpace) + "px;") : ("float:right;margin-right:"+ (-FullPadding) +"px;margin-top:"+ HM_ImageVertSpace + "px;width:"+ HM_ImageSize + "px;");
        var ImgString   = "<IMG STYLE='position:"+ ImgPosition + ImgStyle +"' SRC='" + ImgSrc + "' HSPACE="+ ImgHSpace +" VSPACE=0 BORDER=0>";
        TempString += ImgString;
    }
     TempString += disptext + "</DIV>";
    return TempString;
}
function HM_f_SetItemProperties(itemid,itemidsuffix) {
    this.tree        = HM_CurrentTree;
    this.itemsetup   = HM_f_ItemSetup;
    this.index       = HM_CurrentMenu.itemCount - 1;
    this.tree        = HM_CurrentTree;
    this.isLastItem  = (HM_CurrentMenu.itemCount == HM_CurrentMenu.maxItems);
    this.array         = HM_CurrentMenu.array[HM_CurrentMenu.itemCount];
    this.dispText    = this.array[0];
    this.linkText    = this.array[1];
    this.hasRollover = this.array[2];
    this.permHilite  = (!this.hasRollover && this.array[3]);
    this.hasMore     = this.array[4];
    this.childID     = this.hasMore ? (HM_MenuIDPrefix + itemidsuffix) : null;
    this.child         = null;
    this.onmouseover = HM_f_ItemOver;
    this.onmouseout  = HM_f_ItemOut;
    this.setItemStyle = HM_f_SetItemStyle;
    this.itemStr     = HM_f_GetItemDivStr(itemid,this.dispText,this.hasMore);
}
function HM_f_Make4ItemElement(menucount) {
    var ItemIDSuffix = menucount + "_" + HM_CurrentMenu.itemCount;
    var LayerID  = HM_ItemIDPrefix + ItemIDSuffix;
    var ObjectID = LayerID + "Obj";
     eval(ObjectID + " = new Object()");
    ItemElement = eval(ObjectID);
    ItemElement.setItemProperties = HM_f_SetItemProperties;
    ItemElement.setItemProperties(LayerID,ItemIDSuffix);
    return ItemElement;
}
function HM_f_MakeElement(menuid) {
    var MenuObject;
    var LayerID  = menuid;
    var ObjectID = LayerID + "Obj";
    eval(ObjectID + " = new Object()"); 
    MenuObject = eval(ObjectID);
    return MenuObject;
}
function HM_f_MakeMenu(menucount) {
    if(!HM_f_ValidateArray(HM_ArrayIDPrefix + menucount)) return false;
    HM_CurrentArray = eval(HM_ArrayIDPrefix + menucount);
    
    NewMenu = document.all(HM_MenuIDPrefix + menucount);
    if(!NewMenu) {
        NewMenu = HM_f_MakeElement(HM_MenuIDPrefix + menucount);
        NewMenu.array = HM_CurrentArray;
        NewMenu.tree  = HM_CurrentTree;
        if(HM_CurrentMenu) {
            NewMenu.parentMenu = HM_CurrentMenu;
            NewMenu.parentItem = HM_CurrentMenu.itemElement;
            NewMenu.parentItem.child = NewMenu;
            NewMenu.hasParent = true;
            NewMenu.isHorizontal = HM_CurrentTree.TreeIsHorizontal;
            NewMenu.showImage = HM_CurrentTree.TreeImageShow;
        }
        else {
            NewMenu.isHorizontal = HM_CurrentTree.TopIsHorizontal;
            NewMenu.showImage = HM_CurrentTree.TopImageShow;
        }
    
        HM_CurrentMenu = NewMenu;
        HM_CurrentMenu.itemCount = 0;
        HM_CurrentMenu.maxItems = HM_CurrentMenu.array.length - 1;
        HM_CurrentMenu.zIndex = ++HM_ZIndex;
        HM_CurrentMenu.showIt = HM_f_ShowIt;
        HM_CurrentMenu.keepInWindow = HM_f_KeepInWindow;
        HM_CurrentMenu.onmouseover = HM_f_MenuOver;
        HM_CurrentMenu.onmouseout = HM_f_MenuOut;
        HM_CurrentMenu.hideTree = HM_f_HideTree
        HM_CurrentMenu.hideParents = HM_f_HideParents;
        HM_CurrentMenu.hideChildren = HM_f_HideChildren;
        HM_CurrentMenu.hideTop = HM_f_HideTop;
        HM_CurrentMenu.hideSelf = HM_f_HideSelf;
        HM_CurrentMenu.count = menucount;
        HM_CurrentMenu.hasChildVisible = false;
        HM_CurrentMenu.isOn = false;
        HM_CurrentMenu.hideTimer = null;
        HM_CurrentMenu.currentItem = null;
        HM_CurrentMenu.setMenuStyle = HM_f_SetMenuStyle;
        HM_CurrentMenu.onselectstart = HM_f_CancelSelect;
        HM_CurrentMenu.moveTo = HM_f_MoveTo;
    
        HM_CurrentMenu.htmlString = "<DIV ID='" + HM_MenuIDPrefix + menucount +"' STYLE='position:absolute;visibility:hidden;width:"+ HM_CurrentTree.MenuWidth +"'>";
    }
    while (HM_CurrentMenu.itemCount < HM_CurrentMenu.maxItems) {
        HM_CurrentMenu.itemCount++;
        HM_CurrentItem = document.all(HM_ItemIDPrefix + menucount + "_" + HM_CurrentMenu.itemCount);
        if(!HM_CurrentItem) {
            if(HM_StatusDisplayBuild) status = "Creating Hierarchical Menus: " + menucount + " / " + HM_CurrentMenu.itemCount;
            HM_CurrentMenu.itemElement = HM_f_Make4ItemElement(menucount);
            HM_CurrentMenu.htmlString += HM_CurrentMenu.itemElement.itemStr;
        }
        if(HM_CurrentMenu.itemElement.hasMore && (!HM_CreateTopOnly || HM_AreCreated && HM_CreateTopOnly)) {
            MenuCreated = HM_f_MakeMenu(menucount + "_" + HM_CurrentMenu.itemCount);
            if(MenuCreated) {
                HM_CurrentMenu = HM_CurrentMenu.parentMenu;
            }
            else {
                HM_CurrentMenu.itemElement.hasMore = false;
            }
        }
    }
    document.body.insertAdjacentHTML("BeforeEnd",HM_CurrentMenu.htmlString + "</DIV>");
    menuLyr = document.all(HM_MenuIDPrefix + menucount);
    menuLyr.propertyTransfer = propertyTransfer;
    menuLyr.propertyTransfer();
    HM_CurrentMenu = menuLyr;
    HM_CurrentMenu.setMenuStyle();
    HM_CurrentMenu.childNodes = HM_CurrentMenu.children;
    HM_CurrentMenu.lastItem = HM_CurrentMenu.childNodes[HM_CurrentMenu.childNodes.length-1];
    for(var i=0; i<HM_CurrentMenu.childNodes.length; i++) {
        it = HM_CurrentMenu.childNodes[i];
        it.siblingBelow = i>0 ? HM_CurrentMenu.childNodes[i-1] : null;
        it.propertyTransfer = propertyTransfer;
        it.propertyTransfer();
        it.itemsetup(i+1);
    }
    if(HM_CurrentMenu.isHorizontal){
        var ChildHeight = HM_CurrentMenu.style.pixelHeight;
        ChildHeight -= (HM_BorderWidth * 2);
        for(i=0; i<HM_CurrentMenu.childNodes.length; i++){
            HM_CurrentMenu.childNodes[i].style.pixelHeight = ChildHeight;
        }
    }
    HM_CurrentMenu.moveTo(0,0);
    HM_CurrentTree.treeParent = HM_CurrentTree.startChild = HM_CurrentMenu;
    return HM_CurrentMenu;
}
function HM_f_SetMenuStyle(){
    with(this.style) {
        borderWidth = HM_BorderWidth + "px";
        borderColor = HM_CurrentTree.BorderColor;
        borderStyle = HM_BorderStyle;
        zIndex      = --HM_ZIndex;
        overflow    = "hidden";
        cursor      = "default";
    }
}
function HM_f_SetItemStyle() {
    with(this.style){
        backgroundColor   = (this.permHilite) ? HM_CurrentTree.BGColorOver : HM_CurrentTree.BGColor;
        color             = (this.permHilite) ? HM_CurrentTree.FontColorOver : HM_CurrentTree.FontColor;
        font        = ((HM_FontBold) ? "bold " : "normal ") + HM_FontSize + "pt " + HM_FontFamily;
        padding     = HM_ItemPadding +"px";
        fontStyle   = (HM_FontItalic) ? "italic" : "normal";
        overflow    = "hidden";
        pixelWidth = HM_CurrentTree.ItemWidth;
        if(HM_CurrentMenu.showImage)    {
            var FullPadding  = (HM_ItemPadding*2) + HM_ImageSize + HM_ImageHorizSpace;
            if (HM_RightToLeft) paddingLeft = FullPadding + "px";
            else paddingRight = FullPadding + "px";
        }
        if(!this.isLastItem) {
            var SeparatorString = HM_SeparatorSize + "px solid " + this.tree.SeparatorColor;
            if (this.menu.isHorizontal) borderRight = SeparatorString;
            else borderBottom = SeparatorString;
        }
        if(this.menu.isHorizontal){
            if(this.isLastItem) pixelWidth = (HM_CurrentTree.MenuWidth - HM_BorderWidth - HM_SeparatorSize);
            else pixelWidth = (HM_CurrentTree.MenuWidth - HM_BorderWidth);
            pixelTop = 0;
            pixelLeft = (this.index * (HM_CurrentTree.MenuWidth - HM_BorderWidth));
            var LeftAndWidth = pixelLeft + pixelWidth;
            this.menu.style.pixelWidth = LeftAndWidth + (HM_BorderWidth * 2);
            if (this.index) {
                var SiblingHeight = this.siblingBelow.scrollHeight;
                this.menu.style.pixelHeight = Math.max(this.menu.style.pixelHeight,SiblingHeight+(HM_BorderWidth * 2));
            }
               else{
                var SiblingHeight = this.scrollHeight;
                this.menu.style.pixelHeight = SiblingHeight + (HM_BorderWidth * 2);
            }
        }
        else {
            pixelLeft = 0;
            if (this.index) {
                var SiblingHeight =(this.siblingBelow.scrollHeight + HM_SeparatorSize);
                pixelTop = this.siblingBelow.style.pixelTop + SiblingHeight;
            }
            else pixelTop = 0;
            this.menu.style.pixelHeight = pixelTop + this.scrollHeight + (HM_BorderWidth * 2);
        }
    }
}
function HM_f_ItemSetup(whichItem) {
    this.menu = this.parentElement;
    if (this.hasMore) {
        this.child = document.all(this.childID);
        if(this.child) {
            this.child.parentMenu = this.menu;
            this.child.parentItem = this;
        }
    }
    if (this.linkText) {
        this.onclick = HM_f_LinkIt;
        if(HM_ShowLinkCursor)this.style.cursor = "hand";
    }
    this.setItemStyle();
}
function HM_f_PopUp(menuname){
    if (!HM_AreLoaded) return;
    menuname = menuname.replace("elMenu",HM_MenuIDPrefix);
    var TempMenu = document.all(menuname);
    if(!TempMenu) return;
    HM_CurrentMenu = TempMenu;
    if (HM_ClickStart) {
        var ClickElement = event.srcElement;
        ClickElement.onclick = HM_f_PopMenu;
    }
    else HM_f_PopMenu();
}
function HM_f_PopMenu(){
    if (!HM_AreLoaded || !HM_AreCreated) return true;
    if (HM_ClickStart && event.type != "click") return true;
    HM_f_HideAll();
    HM_CurrentMenu.hasParent = false;
    HM_CurrentMenu.tree.startChild = HM_CurrentMenu;
    var EventX = (event.clientX + document.body.scrollLeft);
    var EventY = (event.clientY + document.body.scrollTop);
    HM_CurrentMenu.xPos = (HM_CurrentMenu.tree.MenuLeft != null) ? HM_CurrentMenu.tree.MenuLeft : EventX;
       HM_CurrentMenu.yPos = (HM_CurrentMenu.tree.MenuTop != null)  ? HM_CurrentMenu.tree.MenuTop  : EventY;
    HM_CurrentMenu.keepInWindow();
    HM_CurrentMenu.moveTo(HM_CurrentMenu.xPos,HM_CurrentMenu.yPos);
    HM_CurrentMenu.isOn = true;
    HM_CurrentMenu.showIt(true);
    return false;
}
function HM_f_MenuOver() {
    if(!this.tree.startChild){this.tree.startChild = this}
    if(this.tree.startChild == this) HM_f_HideAll(this)
    this.isOn = true;
    HM_UserOverMenu = true;
    HM_CurrentMenu = this;
    if (this.hideTimer) clearTimeout(this.hideTimer);
}
function HM_f_MenuOut() {
    if(event.srcElement.contains(event.toElement)) return;
    this.isOn = false;
    HM_UserOverMenu = false;
    if(HM_StatusDisplayLink) status = "";
    if(!HM_ClickKill) HM_HideAllTimer = setTimeout("HM_CurrentMenu.hideTree()",10);  
}
function HM_f_ItemOver(){
    if (HM_KeepHilite) {
        if (this.menu.currentItem && this.menu.currentItem != this && this.menu.currentItem.hasRollover) {
            with(this.menu.currentItem.style){
                    backgroundColor = this.tree.BGColor;
                    color = this.tree.FontColor
            }
        }
    }
    if(event.srcElement.tagName == "IMG") return;
    if(this.hasRollover) {
        this.style.backgroundColor = this.tree.BGColorOver;
        this.style.color = this.tree.FontColorOver;
    }
    if(HM_StatusDisplayLink) status = this.linkText;
    this.menu.currentItem = this;
    if (this.menu.hasChildVisible && (this.menu.visibleChild != this.child)) {
        this.menu.hideChildren(this);
    }
    if (this.hasMore) {
        if(!this.child) {
            HM_CurrentTree = this.tree;
            HM_CurrentMenu = this.menu;
            HM_CurrentItem = this;
            this.child = HM_f_MakeMenu(this.menu.count + "_"+(this.index+1));
            this.tree.treeParent = this.menu;
            this.tree.startChild = this.menu;
        }
        if (this.tree.PositionUnder && (this.menu == this.tree.treeParent)) {
                this.child.xPos = this.menu.style.pixelLeft + this.style.pixelLeft;
                this.child.yPos = this.menu.style.pixelTop + this.menu.offsetHeight - (HM_BorderWidth);
        }
        else {
            this.oL = this.menu.style.pixelLeft + this.offsetLeft;
            this.oT = this.menu.style.pixelTop  + this.offsetTop;
            if(HM_RightToLeft) {
                this.child.xPos = this.oL + (this.tree.HorizOffsetRight - this.child.offsetWidth);
            }
            else {        
                this.child.xPos = this.oL + this.tree.HorizOffsetLeft;
            }
            this.child.yPos = this.oT + HM_ChildOffset + HM_BorderWidth;
        }
        if(!this.tree.PositionUnder) this.child.keepInWindow();
        this.child.moveTo(this.child.xPos,this.child.yPos);
        this.menu.hasChildVisible = true;
        this.menu.visibleChild = this.child;
        this.child.showIt(true);
    }
}
function HM_f_ItemOut() {
    if (event.srcElement.contains(event.toElement)
      || (event.fromElement.tagName=="IMG" && event.toElement.contains(event.fromElement)))
          return;
    if ( (!HM_KeepHilite || ((this.tree.TopIsPermanent && (this.tree.treeParent==this)) && !this.menu.hasChildVisible)) && this.hasRollover) {
        with(this.style) {
            backgroundColor = this.tree.BGColor;
                   color = this.tree.FontColor
        }
    }
}
function HM_f_MoveTo(xPos,yPos) {
    this.style.pixelLeft = xPos;
    this.style.pixelTop = yPos;
}
function HM_f_ShowIt(on) {
    if (!(this.tree.TopIsPermanent && (this.tree.treeParent==this))) {
        if(!this.hasParent || (this.hasParent && this.tree.TopIsPermanent)) {
            var IsVisible = (this.style.visibility == "visible");
            if ((on && !IsVisible) || (!on && IsVisible))
                eval(on ? this.tree.UponDisplay : this.tree.UponHide)
        }
        this.style.visibility = (on) ? "visible" : "hidden";
    }
    if (HM_KeepHilite && this.currentItem && this.currentItem.hasRollover) {
        with(this.currentItem.style){
            backgroundColor = this.tree.BGColor;
            color = this.tree.FontColor;
        }
    }
    this.currentItem = null;
}
function HM_f_KeepInWindow() {
    var ExtraSpace     = 10;
    var WindowLeftEdge = document.body.scrollLeft;
    var WindowTopEdge  = document.body.scrollTop;
    var WindowWidth    = document.body.clientWidth;
    var WindowHeight   = document.body.clientHeight;
    var WindowRightEdge  = (WindowLeftEdge + WindowWidth) - ExtraSpace;
    var WindowBottomEdge = (WindowTopEdge + WindowHeight) - ExtraSpace;
    var MenuLeftEdge = this.xPos;
    var MenuRightEdge = MenuLeftEdge + this.offsetWidth;
    var MenuBottomEdge = this.yPos + this.offsetHeight;
    if (this.hasParent) {
        var ParentLeftEdge = this.parentMenu.style.pixelLeft;
    }
    if (MenuRightEdge > WindowRightEdge) {
        if (this.hasParent) {
            this.xPos = ParentLeftEdge + this.tree.HorizOffsetRight - this.offsetWidth;    
        }
        else {
            dif = MenuRightEdge - WindowRightEdge;
            this.xPos -= dif;
        }
    }
    if (MenuBottomEdge > WindowBottomEdge) {
        dif = MenuBottomEdge - WindowBottomEdge;
        this.yPos -= dif;
    }
    if (MenuLeftEdge < WindowLeftEdge) {
        if (this.hasParent) {
            this.xPos = ParentLeftEdge + this.tree.HorizOffsetLeft;
        }
        else {this.xPos = 5}
    }       
}
function HM_f_LinkIt() {
    HM_f_HideAll();
    if (this.linkText.indexOf("javascript")!=-1) eval(this.linkText)
    else location.href = this.linkText;
}
function HM_f_PopDown(menuname){
    if (!HM_AreLoaded || !HM_AreCreated) return;
    menuname = menuname.replace("elMenu",HM_MenuIDPrefix);
    var MenuToHide = document.all(menuname);
    if(!MenuToHide)return;
    MenuToHide.isOn = false;
    if (!HM_ClickKill) MenuToHide.hideTop();
}
function HM_f_HideAll(callingmenu) {
    for(var i=0; i<HM_TotalTrees; i++) {
        var TopMenu = HM_a_TopMenus[i].tree.startChild;
        if(TopMenu == callingmenu)continue
        TopMenu.isOn = false;
        if (TopMenu.hasChildVisible) TopMenu.hideChildren();
        TopMenu.showIt(false);
    }    
}
function HM_f_HideTree() { 
    HM_HideAllTimer = null;
    if (HM_UserOverMenu) return;
    if (this.hasChildVisible) this.hideChildren();
    this.hideParents();
}
function HM_f_HideTop() {
    TopMenuToHide = this;
    (HM_ClickKill) ? TopMenuToHide.hideSelf() : (this.hideTimer = setTimeout("TopMenuToHide.hideSelf()",HM_TopMilliSecondsVisible));
}
function HM_f_HideSelf() {
    this.hideTimer = null;
    if (!this.isOn && !HM_UserOverMenu) this.showIt(false);
}
function HM_f_HideParents() {
    var TempMenu = this;
    while(TempMenu.hasParent) {
        TempMenu.showIt(false);
        TempMenu.parentMenu.isOn = false;        
        TempMenu = TempMenu.parentMenu;
    }
    TempMenu.hideTop();
}
function HM_f_HideChildren(callingitem) {
    var TempMenu = this.visibleChild;
    while(TempMenu.hasChildVisible) {
        TempMenu.visibleChild.showIt(false);
        TempMenu.hasChildVisible = false;
        TempMenu = TempMenu.visibleChild;
    }
    if (!this.isOn || !callingitem.hasMore || this.visibleChild != this.child) {
        this.visibleChild.showIt(false);
        this.hasChildVisible = false;
    }
}
function HM_f_CancelSelect(){return false}
function HM_f_PageClick() {
    if (!HM_UserOverMenu && HM_CurrentMenu!=null && !HM_CurrentMenu.isOn) HM_f_HideAll();
}
popUp = HM_f_PopUp;
popDown = HM_f_PopDown;
window.onload = function(){setTimeout("HM_f_StartIt()",10)};

//end

Next, the DOM-browser external script.

Produced by Peter Belesis and

All Rights Reserved. Legal Notices.
Created: Jan 23, 2001
Revised: Jan 23, 2001

URL: https://www.webreference.com/dhtml/column46/9.html