function form_kontrolA()
		{		
			if (document.aspnetForm.ctl00_ContentPlaceHolder1_hata_text.value != '')
			{
			    alert(document.aspnetForm.ctl00_ContentPlaceHolder1_hata_text.value); 
			}
   			document.aspnetForm.ctl00_ContentPlaceHolder1_hata_text.value = '';	
         }
         
    
         	function degerKontrol() 
		{ 
            var TextBox1 = document.aspnetForm.ctl00_ContentPlaceHolder1_kad_txt.value;
            if(TextBox1.length == 0){
              alert("Kullanıcı Kodu Giriniz.")
			  return false;
            }
           var TextBox2 = document.aspnetForm.ctl00_ContentPlaceHolder1_pwd_txt.value;
            if(TextBox2.length == 0){
              alert("Şifre Giriniz.")
			  return false;
            }
            document.aspnetForm.ctl00_ContentPlaceHolder1_hdnbox.value = "yes";
        }