function KeyDownHandler(objId)
{
	if (event.keyCode == 13) // enter key was pressed
	{
		event.returnValue=false;
		event.cancel = true;					
		__doPostBack(document.getElementById(objId).name.replace(":","$"));
	}
}

function preloadImg(imgObj, imgSrc){
	eval(imgObj+'=new Image()');
	eval(imgObj+'.src="'+imgSrc+'"');
}

function preloadImgRetval(imgSrc){
	var imgObj=new Image();
	imgObj.src=imgSrc;
	return imgObj;
}

function swapImg(layer, imgObj, imgName){
	if (document.images){
		if (document.layers && layer!=null) eval('document.'+layer+'.document.images["'+imgName+'"].src='+imgObj+'.src');
		else document.images[imgName].src=eval(imgObj+'.src');
	}
}

<!--

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; }
}
//-->