function getLeftTopForWindow(width, height)
{ 

	var left = ((screen.width / 2) - (width / 2)); 
	var top = ((screen.height / 2) - ((height / 2) + 30)); 

	if (top < 0) { top = 0; } 
	if (left < 0) { left = 0; } 

	return "left=" + left + ",top=" + top; 
}

function OpenWndScreenShot( img_name, width, height )
{
//	width = x; height = y;
//	x += 50; y += 70;
//	imageViewer = window.open("screenShot.php?current=" + currentScreen + "&data=" + data + "&width=" + width + "&height=" + height, "imageViewer", "scrollbars=0,menu=0,width=" + x + ",height=" + y + "," + getLeftTopForWindow(x,y));
//	window.open( img_name );
	window.open(img_name,"Screenshot",
	"height=" + (height+32) + ",width=" + (width+16) + ",status=no,toolbar=no,menubar=no,location=no," + getLeftTopForWindow(width,height));
}