function toggleDiv(divid){
    if(document.getElementById(divid).style.display == 'none'){
      document.getElementById(divid).style.display = 'block';
    }else{
      document.getElementById(divid).style.display = 'none';
    }
  }

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_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_swapImgRestore() { //v3.0
	var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_swapImage() { //v3.0
	var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
	if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=x.src=(rootPath!="/")?rootPath+"/"+a[i+2]:""+"/"+a[i+2];}
}
*/
_mo_classnames = Array("whydatalink","solutions","services","bestpractices","supportcenter","library","labs");
_mo_images = Array();
_mo_originalimages = Array();
_mo_normalclass = Array();
_mo_resettimer = 0;
_mo_masterresettimer = 0;
_mo_isfirst = true;

function preloadimages(){
	for(var i = 0; i< _mo_classnames.length; i++){
		_mo_images[i] = new Image();
		_mo_images[i].src = "/images/nav_" + _mo_classnames[i] + "_on.jpg";

		_mo_normalclass[i] = document.getElementById(_mo_classnames[i] + "_list").className;

		if(_mo_normalclass[i] == "active"){
			_mo_originalimages[i] = "/images/nav_" + _mo_classnames[i] + "_on.jpg";
		}
		else{
			_mo_originalimages[i] =  "/images/nav_" + _mo_classnames[i] + "_off.jpg";
		}

	}
}

function swapimage(imgid){
	var myindex = findimageclassname(imgid);

	stopswap();

	if(myindex > -1){
		
		resetimage();
		
		document.getElementById(imgid).src = _mo_images[myindex].src;
		document.getElementById(imgid + "_list").className = "active";
	}
}

function swapback(){
	_mo_resettimer = setInterval("resetimageswap()",200);	
}

function resetimage(){

	if(_mo_isfirst){
		_mo_isfirst = false;
		
		for(var i=0; i< _mo_classnames.length; i++){
			document.getElementById(_mo_classnames[i] + "_list").className = "";
		}	
		
	}
	else{
		for(var i=0; i< _mo_classnames.length; i++){
			document.getElementById(_mo_classnames[i]).src = _mo_originalimages[i];
			document.getElementById(_mo_classnames[i] + "_list").className = "";
		}
	}
}
function resetimageswap(){
	stopswap();
	resetmaster();
}

function stopswap(){
	clearTimeout(_mo_resettimer);
}

function resetimagetimeout(){
	clearTimeout(resetimagetimeout);
	
	resetmaster();
}

function resetmaster(){
	for(var i=0; i< _mo_classnames.length; i++){
		document.getElementById(_mo_classnames[i]).src = _mo_originalimages[i];
		document.getElementById(_mo_classnames[i] + "_list").className = _mo_normalclass[i];
	}
}

function findimageclassname(imgid){
	for(var i = 0; i< _mo_classnames.length; i++){
		if(_mo_classnames[i] == imgid){
			return i;
		}
	}
	return -1;
}