var isDOM = document.getElementById?1:0;
var isIE = document.all?1:0;
var isNS4 = (navigator.appName=='Netscape' && !isDOM)?1:0;
var isIE4 = (isIE && !isDOM)?1:0;
var isDyn = (isDOM||isIE4||isNS4);

function getRef(id, par)
{
par = (!par ? document : (par.navigator ? par.document : par));
return (isIE ? par.all[id] :
(isDOM ? (par.getElementById?par:par.ownerDocument).getElementById(id) :
par.layers[id]));
}

function getSty(id, par)
{
return (isNS4 ? getRef(id, par) : getRef(id, par).style)
}

if (!window.LayerObj) var LayerObj = new Function('id', 'par',
'this.ref=getRef(id, par); this.sty=getSty(id, par); return this');
function getLyr(id, par) { return new LayerObj(id, par) }

function LyrFn(fn, fc)
{
LayerObj.prototype[fn] = new Function('var a=arguments,p=a[0]; with (this) { '+fc+' }');
}
LyrFn('x','if (!isNaN(a[0])) sty.left=p; else return parseInt(sty.left)');
LyrFn('y','if (!isNaN(a[0])) sty.top=p; else return parseInt(sty.top)');
LyrFn('vis','sty.visibility=p');
LyrFn('bgColor','if (isNS4) sty.bgColor=(p?p:null); ' +
'else sty.backgroundColor=(p?p:"transparent") ');
LyrFn('bgImage','if (isNS4) sty.background.src=(p?p:null); ' +
'else sty.backgroundImage=(p?"url("+p+")":"") ');
LyrFn('write','if (isNS4) with (ref.document) {write(p);close()} else ref.innerHTML=p');

function setLyr(lVis, docW, par)
{
if (!this.seq) seq = 0;
if (!docW) docW = 0;
var obj = (!par ? (isNS4 ? window : document.body) :
(!isNS4 && par.navigator ? par.document.body : par));
var newID = '_js_layer_' + seq++;

if (isIE) obj.insertAdjacentHTML('beforeEnd', '<div id="' + newID +
'" style="position:absolute"></div>');
else if (isDOM)
{
var newL = document.createElement('div');
obj.appendChild(newL);
with (newL) { id = newID; style.position='absolute' }
}
else if (isNS4)
{
var newL = new Layer(docW, obj);
newID = newL.id;
}

var lObj = getLyr(newID, par);

with (lObj) { vis(lVis); x(0); y(0); sty.width=docW }
return lObj;
}

function popOver(mN, iN) { with (this)
{
clearTimeout(hideTimer);
overM = mN;
overI = iN;
var thisI = menu[mN][iN];

if (iN && this.onmouseover) this.onmouseover();

litOld = litNow;
litNow = new Array();
var litM = mN, litI = iN;
while(1)
{
litNow[litM] = litI;
if (litM == 'root') break;
litI = menu[litM][0].parentItem;
litM = menu[litM][0].parentMenu;
}

var same = true;
for (var z in menu) if (litNow[z] != litOld[z]) same = false;
if (same) return;

for (thisM in menu)
{
if (!menu[thisM][0].lyr) continue;
litI = litNow[thisM];
oldI = litOld[thisM];

if (litI && (litI != oldI)) changeCol(thisM, litI, true);

if (oldI && (oldI != litI)) changeCol(thisM, oldI, false);

if (isNaN(litI)) { menu[thisM][0].lyr.vis('hidden') }
}

clearTimeout(showTimer);
nextMenu = '';
if (thisI.type == 'sm:')
{
var targ = thisI.href, lyrM = menu[mN][0].lyr;

with (menu[targ][0])
{
if (!lyr) update(targ);

lyr.x(eval(offX) + (typeof(offX)=='number' ? lyrM.x() + thisI.lyr.x() : 0));
lyr.y(eval(offY) + (typeof(offY)=='number' ? lyrM.y() + thisI.lyr.y() : 0));

showStr = myName + '.menu.' + targ + '[0].lyr.vis("visible")';
nextMenu = targ;
if (showDelay) showTimer = setTimeout(showStr, showDelay);
else eval(showStr);
}
}
}}
function popChangeCol(mN, iN, isOver) { with (this.menu[mN][iN])
{
var col = isOver ? overCol : outCol;
if (col.indexOf('.') == -1) lyr.bgColor(col);
else lyr.bgImage(col);

if ((overClass == outClass) && (outBorder == overBorder)) return;

if (isNS4) lyr.write(this.getHTML(mN, iN, isOver));

else with (lyr.ref)
{
className = (isOver ? overBorder : outBorder);
var chl = (isDOM ? childNodes : children)
for (var i = 0; i < chl.length; i++) chl[i].className = (isOver ? overClass : outClass);
}
}}

function popOut(mN, iN) { with (this)
{
if ((mN != overM) || (iN != overI)) return;
if (this.onmouseout) this.onmouseout();

var thisI = menu[mN][iN];

if (thisI.href != nextMenu) clearTimeout(showTimer);

if (hideDelay)
{
var delay = ((mN == 'root') && (thisI.type != 'sm:')) ? 50 : hideDelay;
hideTimer = setTimeout(myName + '.over("root", 0)', delay);
}

overM = 'root';
overI = 0;
}}

function popClick(evt) { with (this)
{
if (overI)
{
if (this.onclick) this.onclick();

var thisI = menu[overM][overI];

with (thisI) switch (type)
{
case 'sm:': return;
case 'js:': { eval(href); break }
case '': type = 'window';
default: if (href) eval(type + '.location.href = "' + href + '"');
}
}

over('root', 0);
}}

function popClearLyr(wN) { with (this)
{
for (mN in menu) with (menu[mN][0]) if (par == wN) lyr = null;
}}

function addProps(obj, data, names, addNull)
{
for (var i = 0; i < names.length; i++) if(i < data.length || addNull) obj[names[i]] = data[i];
}

function ItemStyle()
{
var names = ['len', 'spacing', 'popInd', 'popPos', 'pad', 'outCol', 'overCol', 'outClass',
'overClass', 'outBorder', 'overBorder'];
addProps(this, arguments, names, true);
}

function popStartMenu(mName) { with (this)
{
if (!menu[mName]) { menu[mName] = new Array(); menu[mName][0] = new Object(); }

actMenu = mName;
menu[mName].length = 1;
nextItem = 1;
var aM = menu[mName][0];

var names = ['isVert', 'isVert', 'offX','offY', 'width', 'itemSty', 'par', 'parentMenu',
'parentItem'];
addProps(aM, arguments, names, true);

if (!aM.lyr) aM.lyr = null;
}}

function popAddItem() { with (this)
{
var aI = menu[actMenu][nextItem++] = new Object();

var names = ['text', 'href', 'type', 'itemSty', 'len', 'spacing', 'popInd', 'popPos',
'iW', 'iH', 'lyr'];
addProps(aI, arguments, names, true);

var iSty = (arguments[3] ? arguments[3] : menu[actMenu][0].itemSty);
for (prop in iSty) if (aI[prop] == window.UnDeFiNeD) aI[prop] = iSty[prop];

if (isNS4 && aI.outBorder) aI.pad++;
}}

function popGetHTML(mN, iN, isOver) { with (this)
{
var itemStr = '';
with (menu[mN][iN])
{
var textClass = (isOver ? overClass : outClass);

if ((type == 'sm:') && popInd)
{
if (isNS4) itemStr += '<layer class="' + textClass + '" left="'+ ((popPos+iW) % iW) +
'" top="' + pad + '">' + popInd + '</layer>';
else itemStr += '<div class="' + textClass + '" style="position: absolute; left: ' +
((popPos+iW) % iW) + '; top: ' + pad + '">' + popInd + '</div>';
}

if (isNS4) itemStr += (outBorder ? '<span class="' + (isOver ? overBorder : outBorder) +
'"><spacer type="block" width="' + (iW - 8) + '" height="' + (iH - 8) + '"></span>' : '') +
'<layer left="' + pad + '" top="' + pad + '" width="' + (iW - (2 * pad)) + '" height="' +
(iH - (2 * pad)) + '"><a class="' + textClass + '" href="#" ' +
'onClick="return false" onMouseOver="status=\'\'; ' + myName + '.over(\'' + mN + '\',' +
iN + '); return true">' + text + '</a></layer>';

else itemStr += '<div class="' + textClass + '" style="position: absolute; left: ' + pad +
'; top: ' + pad + '; width: ' + (iW - (2 * pad)) + '; height: ' + (iH - (2 * pad)) +
'">' + text + '</div>';
}
return itemStr;
}}

function popUpdate(upMN) { with (this)
{
if (!isDyn) return;

for (mN in menu) with (menu[mN][0])
{
if (upMN && (upMN != mN)) continue;

var eP = eval(par);
if (eP && eP.navigator && (eP.document.readyState != 'complete')) continue;

var str = '', iX = 0, iY = 0;

for (var iN = 1; iN < menu[mN].length; iN++) with (menu[mN][iN])
{
var itemID = myName + '_' + mN + '_' + iN;

if (type == 'sm:')
{
menu[href][0].parentMenu = mN;
menu[href][0].parentItem = iN;
}

var shrink = (outBorder && isDOM && !isIE ? 2 : 0)
iW = (isVert ? width : len) - shrink;
iH = (isVert ? len : width) - shrink;

var isImg = (outCol.indexOf('.') != -1) ? true : false;

if (isDOM || isIE4)
{
str += '<div id="' + itemID + '" ' + (outBorder ? 'class="' + outBorder + '" ' : '') +
'style="position: absolute; left: ' + iX + '; top: ' + iY + '; width: ' + iW + '; height: ' +
iH + '; ' + (outCol ? 'background: ' + (isImg ? 'url('+ outCol+')' : outCol) : '') + '" ';
}
if (isNS4)
{
str += '<layer id="' + itemID + '" left="' + iX + '" top="' + iY + '" width="' +
iW + '" height="' + iH + '" ' + (outCol ? (isImg ? 'background="' : 'bgcolor="') +
outCol + '" ' : '');
}

str += 'onMouseOver="' + myName + '.over(\'' + mN + '\',' + iN + ')" ' +
'onMouseOut="' + myName + '.out(\'' + mN + '\',' + iN + ')">' +
getHTML(mN, iN, false) + (isNS4 ? '</layer>' : '</div>');

var spc = (outBorder ? 1 : 0)
if (isVert) iY += len + spacing - spc;
else iX += len + spacing - spc;

}

if (!lyr) lyr = setLyr('hidden', 3, eval(par));
else if (isIE4) setTimeout(myName + '.menu.' + mN + '[0].lyr.sty.width=9', 50);

with (lyr) { sty.zIndex = 1000; write(str); sty.cursor = (isIE ? 'hand' : 'pointer') }

for (var i = 1; i < menu[mN].length; i++)
menu[mN][i].lyr = getLyr(myName + '_' + mN + '_' + i, lyr.ref);

}

position();
menu.root[0].lyr.vis('visible');
}}

function popPosition(wN) { with (this)
{
for (mN in menu) if (!wN || menu[mN][0].par == wN) with (menu[mN][0])
{
if (!lyr) return;

if (typeof(offX)!='number' || mN=='root') lyr.x(eval(offX));
if (typeof(offY)!='number' || mN=='root') lyr.y(eval(offY));
}
}}
function PopupMenu(myName)
{
this.myName = myName;

this.showTimer = 0;
this.hideTimer = 0;
this.showDelay = 0;
this.hideDelay = 500;
this.showMenu = '';

this.menu =  new Array();
this.litNow = new Array();
this.litOld = new Array();

this.overM = 'root';
this.overI = 0;

this.actMenu = '';
this.nextItem = 1;

this.over = popOver;
this.changeCol = popChangeCol;
this.out = popOut;
this.click = popClick;
this.clearLyr = popClearLyr;
this.startMenu = popStartMenu;
this.addItem = popAddItem;
this.getHTML = popGetHTML;
this.update = popUpdate;
this.position = popPosition;
}