function gotopage(urltext) {
  document.location=urltext;
}

function openwindow(url,name,wwidth,wheight) {
   winStats='toolbar=no,location=no,directories=no,menubar=no,resizable=yes,'
   winStats+='scrollbars=yes,width='+wwidth+',height='+wheight;
   if (navigator.appName.indexOf("Microsoft")>=0) {
	  winStats+=',left=100,top=100'
	}else{
	  winStats+=',screenX=100,screenY=100'
	}
   window.open(url,name,winStats)     
}
function openadwindow(url,name,wwidth,wheight) {
   winStats='toolbar=yes,location=yes,directories=yes,menubar=yes,resizable=yes,'
   winStats+='scrollbars=yes,width='+wwidth+',height='+wheight;
   if (navigator.appName.indexOf("Microsoft")>=0) {
	  winStats+=',left=10,top=10'
	}else{
	  winStats+=',screenX=10,screenY=10'
	}
   window.open(url,name,winStats)     
}
function SubmitForm() {
	numberErrors = 0;
	errorString = "";
	errorMissingDataString = "";
	if (!checkInput(document.login_form.username.value)) {
		numberErrors++;
		errorMissingDataString += "\n    - Kullanici adi eksik   ";
	}
	else
	{
		if (!checkEmailAddress(document.login_form.username.value)) {
			numberErrors++;
			errorMissingDataString += "\n    - Kullanici adiniz e-mail formatinda degil   ";
		}
	}
	if (!checkInput(document.login_form.password.value)) {
		numberErrors++;
		errorMissingDataString += "\n    - Sifre eksik   ";
	}
	if (numberErrors > 0) {
		if (errorMissingDataString != "") {
			errorMissingDataString = "Devam etmek için lütfen su hatalari düzeltin:\n" + errorMissingDataString;
			errorString += errorMissingDataString;
			}
		alert(errorString);
		return false;
	}
	document.login_form.submit();
}