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;
  return true;
}

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_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_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=a[i+2];}
  return true;
}

function getBasePath(){
	//todo: return real path
	var hash = {index:"home",digitalworld:"dw",productfinder:"pf", pcwtools:"tools"}
	var p = location.pathname;
	p = p.substr(1);//remove first '/'
	var path = p.substr(0,p.indexOf('/'));
	if(!path) path = "home";
	if(hash[path]) path = hash[path];

	return path;
}

function setOnTab(){
	var t = document.getElementById("tabstable");
	var imgs = t.getElementsByTagName("img");
	var offpath = "http://images.pcworld.com/shared/graphics/tabs/dd/"+getBasePath()+"off.gif", src="";
	for(var i in imgs){
		src = imgs[i].src;
		if(src){
			if(src.indexOf(offpath) != -1){
				imgs[i].src = 'http://images.pcworld.com/shared/graphics/tabs/dd/'+getBasePath()+'on.gif';
				//dbg:alert(src+" "+imgs[i].src);
			}
		}
	}
}