function epostakontrol(text){
var kontrol = /\w+@\w+\.\w/;
	
	if(kontrol.test(text)){
		return true;
	}
	else{
		return false;
	}
}


function formkontrolu(){
	var obj = document.getElementById("giris_yap");
	var sifre = obj.sifre.value;
	
	if(obj.eposta.value==""){
			
		document.getElementById("Hata1").style.display = "block";	
		obj.eposta.focus();
		setInterval("document.getElementById('Hata1').style.display = 'none'", 5000);
		return false;
	}
	
	else if(!epostakontrol(obj.eposta.value)){

		document.getElementById("Hata2").style.display = "block";		
		obj.eposta.focus();
		setInterval("document.getElementById('Hata2').style.display = 'none'", 5000);
		return false;
	
	}

	if(sifre.length<6){
	
		document.getElementById("Hata3").style.display = "block";
		obj.sifre.focus();
		setInterval("document.getElementById('Hata3').style.display = 'none'", 5000);
		return false;
	}
	
	return true;
	
}
/* form kontrolü f */