function regKontrol(pattern, value)
{
   r = new RegExp(pattern, "g");
   return r.test(value);
}
 
function formKontrol(form)
{
     patternEposta   = "^"+"([abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0-9_\.\-]+)"+"@"+"([abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0-9_\.\-]+)"+"[\.]"+"([abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0-9_\.\-]+)"+"$";
 
     if ( !regKontrol(patternEposta,form.mail.value))
     {
          alert(form.sonuc.id);
          form.mail.value="";
          form.mail.focus();
          return false;
     }else{
	  	alert(form.sonuc.value);
	 	 return true;
	 }
}