/***********************************************
* Drop Down/ Overlapping Content- © Dynamic Drive (www.dynamicdrive.com)
* This notice must stay intact for legal use.
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/
var xposAdjustment = 0;
var yposAdjustment = 0;

function getposOffset(overlay, offsettype){
var totaloffset=(offsettype=="left")? overlay.offsetLeft : overlay.offsetTop;
var parentEl=overlay.offsetParent;
while (parentEl!=null){
totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
parentEl=parentEl.offsetParent;
}
return totaloffset;
}

function overlay(curobj, subobjstr, opt_position){
if (location.href.indexOf("/isorf") != -1){
	opt_position = "undefined";
}
if (document.getElementById){
var subobj=document.getElementById(subobjstr)
subobj.style.display=(subobj.style.display!="block")? "block" : "none"
var xpos=getposOffset(curobj, "left")+((typeof opt_position!="undefined" && opt_position.indexOf("right")!=-1)? -(subobj.offsetWidth-curobj.offsetWidth) : 0) 
var ypos=getposOffset(curobj, "top")+((typeof opt_position!="undefined" && opt_position.indexOf("bottom")!=-1)? curobj.offsetHeight : 0)
xpos = xpos + xposAdjustment;
ypos = ypos + yposAdjustment;

if (location.href.indexOf("/light") != -1){
	subobj.style.left="230px"
	subobj.style.top="300px"
} else {
	subobj.style.left=xpos+"px"
	subobj.style.top=ypos+"px"
}
return false
}
else
return true
}

function overlayclose(subobj){
document.getElementById(subobj).style.display="none"
}