function ac(){
	pencere_ac('loginmku.php',0);

}

function pencere_ac(url,ekrantipi){
urlhata='hata.html';
navname = navigator.appName.substring(0,9);
if (navname == "Netscape"){
ver=parseFloat(navigator.appVersion.substring(0,4));

if (ver < 4.06){
	ac_genel(urlhata,1);
	return;
}
else ac_genel(url,ekrantipi);
}
else if (navname == "Microsoft"){
	i_ptr = navigator.appVersion.indexOf("MSIE") + 5;
	ver=parseFloat(navigator.appVersion.substring(i_ptr,i_ptr+4));

if (ver < 4.01){
	ac_genel(urlhata,1);
return;
}
	else ac_genel(url,ekrantipi);
}
else if (navname == "Opera") openUrl_genel(url,ekrantipi);
else alert(" MicroSoft Internet Explorer veya \n\n"+
" Netscape Communicator \n\n" +
"Tarayıcılarından Birini Tercih Ediniz \n\n");
}

function ac_genel(url,ekrantipi){
var navname = navigator.appName.substring(0,9);
if (navname=="Netscape"){
var res="resizable=0,";
if (ekrantipi==0){
//alert(screen.availHeight);
window.open(url,'MKU',"toolbar=0,location=0,history=0,directories=0,status=1,menubar=0,scrollbars=1," + res + " left=0,top=0,height=" + (screen.availHeight - 50) + ",width=" + (screen.availWidth - 10));
}
 else{
window.open(url,'MKU',"toolbar=0,location=0,history=0,directories=0,status=1,menubar=0,scrollbars=1,resizable=1");

}
}
else{
var res="resizable=1,";
if (ekrantipi==0){
//alert(screen.availHeight);
window.open(url,'MKU',"toolbar=0,location=0,history=0,directories=0,status=1,menubar=0,scrollbars=1," + res + " left=0,top=0,height=" + (screen.availHeight - 50) + ",width=" + (screen.availWidth - 10));
}
else{
window.open(url,'MKU',"toolbar=0,location=0,history=0,directories=0,status=1,menubar=0,scrollbars=1,resizable=1");
}
}
}