/***********************************************
* 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
***********************************************/
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 (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);
	subobj.style.left=xpos+"px";
	subobj.style.top=ypos+"px";
	return false;
} else return true
}

function ver(curobj, subobjstr){
return overlay(curobj, subobjstr, "bottom");
}
function nover(subobj){
document.getElementById(subobj).style.display="none" ;
}
function overlayclose(subobj){
document.getElementById(subobj).style.display="none" ;
}

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