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, sh_hide, rit){
	if (document.getElementById){
		//var subobj=document.getElementById(subobjstr)
		//document.getElementById(subobjstr).style.display=(document.getElementById(subobjstr).style.display!="block")? "block" : "none";
		document.getElementById(subobjstr).style.display = sh_hide ? "block" : "none";
		document.getElementById(subobjstr).style.right = rit;
		return false
	}
	else
		return true
}

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