function openNoScrollWindow(url,title,width,height) {
	// read resolution and set variables
	var      x = screen.width;
	var      y = screen.height;
	var    top = parseInt((y-height)/2);
	var   left = parseInt((x-width)/2);
	// open new window and use the variables to position it
	window.open(url,title,'width='+width+',height='+height+',left='+left+',top='+top+',scrollbars=no,resize=yes,resizable=yes,menubar=no,toolbar=no,directories=no');
}

function openWindow(url,title,width,height) {
	// read resolution and set variables
	var      x = screen.width;
	var      y = screen.height;
	var    top = parseInt((y-height)/2);
	var   left = parseInt((x-width)/2);
	// open new window and use the variables to position it
	window.open(url,title,'width='+width+',height='+height+',left='+left+',top='+top+',scrollbars=yes,resize=yes,resizable=yes,menubar=yes,toolbar=no,directories=no');
}