var public_root_path="";
function openWindow(url, width,height,name)
{
	var okno = window.open(url,name,"toolbar=no,menubar=no,personalbar=no,Width="+width+",Height="+height+",scrollbars=yes,resizable=yes");
	okno.focus();
	okno.moveTo((screen.availWidth/2)-(width/2),(screen.availHeight/2)-(height/2));	

}