el_idle=new Image (126,28); el_roll=new Image (126,28);
el_idle.src="gifs/el_idle.gif"; el_roll.src="gifs/el_roll.gif";

up_idle=new Image (126,28); up_roll=new Image (126,28);
up_idle.src="gifs/up_idle.gif"; up_roll.src="gifs/up_roll.gif";

acro_idle=new Image (88,31); acro_roll=new Image (88,31);
acro_idle.src="gifs/acro_idle.gif"; acro_roll.src="gifs/acro_roll.gif";

btnlog_idle=new Image (88,31); btnlog_roll=new Image (88,31);
btnlog_idle.src="gifs/button_login.gif"; btnlog_roll.src="gifs/button_login2.gif";

btnlogout_idle=new Image (88,31); btnlogout_roll=new Image (88,31);
btnlogout_idle.src="gifs/button_logout.gif"; btnlogout_roll.src="gifs/button_logout2.gif";

btnlearnmore_idle=new Image (88,31); btnlearnmore_roll=new Image (88,31);
btnlearnmore_idle.src="gifs/button_learnmore.gif"; btnlearnmore_roll.src="gifs/button_learnmore2.gif";


function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}
function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function onKeyPress_Return() 
{     
	if (event.keyCode == 13) 
	{   
		event.cancelBubble = true;
		event.returnValue = false;
	}
}

var _HiderContainer = null;

function BrowserDetect() {
	var ua = navigator.userAgent.toLowerCase();
	// browser name
	this.isIE = ( (ua.indexOf('msie') != -1) && (ua.indexOf('opera') == -1) && (ua.indexOf('webtv') == -1) );
	// browser version
	this.versionMinor = parseFloat(navigator.appVersion);
	if (this.isIE && this.versionMinor >= 4) {
		this.versionMinor = parseFloat( ua.substring( ua.indexOf('msie ') + 5 ) );
	}
	this.versionMajor = parseInt(this.versionMinor);
	// specific browser shortcuts
	this.isIE5x = (this.isIE && this.versionMajor == 5);
	this.isIE55 = (this.isIE && this.versionMinor == 5.5);
	this.isMac   = (ua.indexOf('mac') != -1);
}

// Assign Rollovers to the main navigation
function Main(strNavAbbrev) {
	BrowserDetect();
	if (document.all&&document.getElementById) {
		navRoot = document.getElementById(strNavAbbrev);
		for (i=0; i<navRoot.childNodes.length; i++) {
			node = navRoot.childNodes[i];
			if (node.nodeName=="LI") {
				if(this.versionMinor >=5.5)
				{
					var aUL = new Array();
					for (var z=0;z<node.childNodes.length;z++) {
						if (node.childNodes[z].nodeName == "UL") {
							aUL[aUL.length] = node.childNodes[z];
						}
					}
					oUL = aUL[0];
					node.nIndex = 0;
					node.parentMenu = navRoot;
					node.submenu = oUL;
				}
				node.onmouseover=function() {
					this.className+=" over";
					if (typeof(iFrameCtrl) != "undefined" && typeof(this.submenu) != "undefined")
					{ 
						iFrameCtrl(this.submenu, this);
						xShow(this.submenu);
						this.parentMenu.shownMenu = this.submenu;
					}
				}
				node.onmouseout=function() {
					this.className = "";
					if (typeof(this.submenu) != "undefined")
					{
						xHide(this.submenu);
						HideMenu(navRoot);
					}
				}
			}
		}
	}
}




// Similar to Main() above, but this function is for DL instead of UL
function DefinitionListMain(strNavAbbrev) {
	BrowserDetect();
		navRoot = document.getElementById(strNavAbbrev);
		for (i=0; i<navRoot.childNodes.length; i++) {
			node = navRoot.childNodes[i];
			if (node.nodeName=="DL") {
				node.onmouseover=function() {
				
					HideNavDl(strNavAbbrev);
	
					this.className+=" over";
					//this line is unique to intrinsic site
					document.getElementById('mod_mainnav_1').style.zIndex="2";
				}
				/*node.onmouseout=function() {
					this.className = "";
					//this line is unique to intrinsic site
					document.getElementById('mod_mainnav_1').style.zIndex="0";
				}*/
			}
	}
}


function HideNavDl(strNavAbbrev) {
	navRoot = document.getElementById(strNavAbbrev);
	if(navRoot != null)
	{
		for (i=0; i<navRoot.childNodes.length; i++) {
			node = navRoot.childNodes[i];
			if (node.nodeName=="DL") {
			
				node.className = "";
				document.getElementById('mod_mainnav_1').style.zIndex="0"
			}
		}
	}
}

function HideMenu(oMenu) {
	var curmenu = oMenu.shownMenu;
	var prevMenu;
	while ( curmenu ) {
		if (typeof(HideiFrame) != "undefined") HideiFrame(curmenu);
		prevMenu = curmenu;
		curmenu = curmenu.shownMenu;
		prevMenu.shownMenu = null;
	}
}

// Assign Rollovers to the footer navigation
function simpleNav(sElement) {
	if (document.all&&document.getElementById) {
		footer = document.getElementById(sElement);
		for (i=0; i<footer.childNodes.length; i++) {
			node = footer.childNodes[i];
			if (node.nodeName=="LI") {
				node.onmouseover=function() {
					this.className+=" over";
				}
				node.onmouseout=function() {
					this.className = "";
				}
			}
		}
	}
}
window.onload=function()
{
	//Main("nb");
	DefinitionListMain("nb");
	//simpleNav("ft");
	
	// javascript for changing height of page (intrinsic only - see ollie)
	setHeight();
}

function setHeight ()
{
    var contentHeight= document.getElementById('content').offsetHeight;
    
    if (contentHeight-450 < 0)
    {
        document.getElementById('content').style.height='450px';
    }
} 



function iFrame(oLayer, oNewHiderContainer) {
	sFilter = "filter:progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0);";

	var zIndex = oLayer.style.zIndex;
	if (zIndex == "")
		zIndex = xGetAnyCS(oLayer, "z-index");
	zIndex = parseInt(zIndex);
	if ( isNaN(zIndex) ) {
		zIndex = 2;
	}
	
	var oHiderContainer;
	if ( (oNewHiderContainer = xGetElementById(oNewHiderContainer)) ) {
		oHiderContainer = oNewHiderContainer;
	} else {
		oHiderContainer = _HiderContainer;
	}

	oIframe = document.getElementById("hider" + oLayer.id);
	if (!oIframe) {
		zIndex--;
		oHiderContainer.insertAdjacentHTML("afterBegin", '<iframe id="hider' + oLayer.id + '" scroll="no" frameborder="0" src="about:blank" style="position:absolute;visibility:hidden;border:0px;' + sFilter + 'top:0px;left;0px;width:0px;height:0px;background-color:#999;z-index:' + zIndex + ';"></iframe>');
		oIframe = document.getElementById("hider" + oLayer.id);
	}
	return oIframe;
}

function iFrameCtrl(oLayer, oNewHiderContainer) {
	oIframe = iFrame(oLayer, oNewHiderContainer);
	if (oIframe) {
		xMoveTo( oIframe, xLeft(oLayer), xTop(oLayer) );
		xResizeTo( oIframe, xWidth(oLayer), xHeight(oLayer) );
		xShow( oIframe );
	}
}

function HideiFrame(oLayer, oNewHiderContainer) {
	oIframe = iFrame(oLayer, oNewHiderContainer);
	if (oIframe) 
		xHide( oIframe );
}