// JavaScript Document

function popup(url, name, width, height, scrollbar){
	var str = "height=" + height + ",innerHeight=" + height;
	str += ",width=" + width + ",innerWidth=" + width;
	if (window.screen) {
		var ah = screen.availHeight - 30;
		var aw = screen.availWidth - 10; 
		
		var xc = (aw - width) / 2;
		var yc = (ah - height) / 2;
	
		if(scrollbar){
			scrollbar = 1;	
		}else{
			scrollbar = 0;
		}
		str += ",left=" + xc + ",scrollbars=" +  scrollbar + ",screenX=" + xc;
		str += ",top=" + yc + ",screenY=" + yc + ",resizable=yes";
	}
	
	var popupwindow = window.open(url, name, str);
	popupwindow.focus();
}