var popwin=null;
function popupwin(width,height,urlsrc){
	var optionstring="WIDTH="+width+",HEIGHT="+height+",toolbar=1,scrollbars=1,resizable=1,screenX=0,screenY=120";
	if(!popwin || popwin.closed){
		
		popwin=window.open(urlsrc,"",optionstring);
	}
	else{
	        popwin.close();
	        popwin=window.open(urlsrc,"",optionstring);
		popwin.focus();
	}			
	
	

				
 			
}

function closewin(){
	if(popwin){
	        popwin.close();
	}					

				
 			
}