var w = screen.width; // Get the width of the screen
var h = screen.height; // Get the height of the screen

function openCentered(url, width, height)
{
	var w = screen.width; // Get the width of the screen
	var h = screen.height; // Get the height of the screen

	// The size of the Window
	var win_width = width;
	var win_height = height;

	// Where to place the Window
	var left = (w - win_width)/2;
	var top = (h - win_height)/2;

	var features = 'width='+win_width+',height='+win_height+',top='+top+',left='+left+',screenX='+left+',screenY='+top+',scrollbars=yes,resizable=yes';

	var win = window.open(url, '', features);
}



function testhello(){
alert("test");
document.write("hello");
}