var preloadFlag = false;


function NewWindow (strUrl){
	window.open(strUrl, "", "scrollbars=0, toolbar=0, menubar=0, resizable=1, HEIGHT=200, WIDTH=200");
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

function PreLoadImages() {
	if(document.images){
    var i, a=PreLoadImages.arguments;
		var PreImg = new Array();
		for(i=0; i < a.length; i++){
				PreImg[i]=new Image();
				PreImg[i].src=a[i];
		}
		preloadFlag = true;
	}
}

function CheckChar(Obj, evnt) {
	var CharCode = (window.event) ? evnt.keyCode : evnt.which; // Netscape/Firefox/Opera : IE

	if (CharCode>190) {return false;}
		else {Obj.value=Obj.value.toLowerCase();}
}

function JustNumber(evnt) {
	var CharCode = (window.event) ? evnt.keyCode : evnt.which; // Netscape/Firefox/Opera : IE

	if ((CharCode > 47) && (CharCode < 58)) {return true}
	 else {
		if ((CharCode==0) || (CharCode<33) || (CharCode==44) || (CharCode > 90 && CharCode < 97)) {return true}
			else{return false}
		}
}

function CheckMail(strMail) {
	var posDot, posAt, iLength;
	//alert(document.form1.edtMail.value);
	iLenght=strMail.length;
	if(iLenght==0){alert("Hata\ne-Mail adresini bos geçemezsiniz.");return false;}
	posAt= strMail.indexOf("@");
	posDot=strMail.indexOf(".");
	if(strMail.indexOf(" ")>0){alert("Hata\ne-Mail adresi içersinde bosluk bulunamaz.");return false;}
	if ((iLength < 5) || (posAt < 1) || (posAt == -1) || (posDot < 1) || 
		(posDot == -1) || ((iLength-1)==posAt) || ((iLength-1)==posDot) ||
		(posAt+1==posDot) || (posAt-1==posDot)) {alert("Hata\ne-Mail adresinizi eksik veya yanlis girdiniz.");return false;}
	else {return true}
}

function RenkDegistir(Obj, Color) {
		//if (Color==''){alert(Color=Obj.style.background);
		Obj.style.background=Color;
}