 <!--

function HideDiv(ID){
	document.getElementById(ID).style.display='none';
}
		
function ShowDiv(ID){
	document.getElementById(ID).style.display='';
}

function ShowHideDiv(ID){
	if(document.getElementById(ID).style.display==''){
		HideDiv(ID);
	}else{
		ShowDiv(ID);
	}
}

 
var aa=null; 
   var wa = 780;
   var ha = 550;
   var la = Math.floor((screen.width-wa)/2);
   var ta = Math.floor((screen.height-ha)/2);
function main_popup(url) 
   { 
   aa=window.open(url,'aa',"scrollbars=yes,resizable=yes,width=" + wa + ",height=" + ha + ",top=" + ta + ",left=" + la) 
   aa.focus(); 
  } 


 //-->