function openWindow(id, wndhref) {
	openWindow(id, wndhref, "610", "500");
}

function openWindow(id, wndhref, width, height) {
	var x,y;
	x = window.screen.width/2-400;
	y = window.screen.height/2-300;
	
	width = width ? width : 610;
	height = height ? height : 500;
	  
	var style="toolbar=0,location=0,directories=0,status=1,menubar=0,scrollbars=1,resizable=1,width="+width+",height="+height+",top="+y+",left="+x;
	var popupwin=window.open(wndhref,id,style);
	
	return false;
}

function closeWindow() {
	window.opener.location.reload(true);
	window.close();
}