function OpenWin(url,w,h,name)
{
	var ozellik;
	var top = (screen.height - h)/2 - 40;
	var left = (screen.width - w)/2; 
	if(top < 0) top = 0; 
	if(left < 0) left = 0; 
	ozellik = 'top=' + top + ',left=' +left; 
	ozellik += ',height=' + h + ',width=' + w + ',status=1, resizable=1'; 
	return window.open(url, name, ozellik); 	
}