function openWindow(wURL,wName,wWidth,wHeight,wOptions)
{
sW = Math.round((screen.width/2)-(wWidth/2));
sH = Math.round((screen.height/2)-((wHeight/2)+27));
window.open(wURL,wName,'width='+wWidth+',height='+wHeight+','+wOptions+',left='+sW+',top='+sH);
}

/*
<A HREF="javascript:openWindow('wURL.html','wName','640','480','status=1,scrollbars=1,resizable=1,directories=0')"></A>
*/

function uyeNoSifre()
{
	var uyeNo = document.login.j_username;
	var uyeSifre = document.login.j_password;
	if (uyeNo.value.length != 8 || uyeSifre.value.length != 6 || !IsNumeric(uyeNo.value) || !IsNumeric(uyeSifre.value))
	{
	alert("Üye No/Şifre bilgilerinizi kontrol ediniz!");
	uyeNo.focus();
	return false;
	} else {
        return true;;
	}
}

function IsNumeric(data)
{
var ValidChars = "0123456789";
var IsNumber=true;
var Char;
	for (i = 0; i < data.length && IsNumber == true; i++) 
	{
		Char = data.charAt(i); 
		if (ValidChars.indexOf(Char) == -1) {IsNumber = false;}
	}
return IsNumber;
}
function goback(gameid){
    document.dummyhesabim.game.value=gameid;
    document.dummyhesabim.submit();
}