var NS = (document.layers) ? 1 : 0;
var IE = (document.all)    ? 1 : 0;
var submitted=0;

function CheckKey(e) {
   if (NS) {
	thekey = e.which;
	m=e.modifiers;
   } else {
	 thekey=window.event.keyCode;
	 m=window.event.shiftKey;
   }
	if(!(!m && (thekey==13 || thekey==8 || thekey==37 || thekey==39 || thekey==46 || (thekey>=48 && thekey<=57) || (thekey>=96 && thekey<=105)))) {
		if (NS) e.which=0;
		else {
		window.event.keyCode=0;
		window.event.returnValue = false;
		}
		return false;
	} else
		return true;
}


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