function Checktext(n,v){ 
	if(v==""){ alert(n);return false; }
	else { return true; }
}

function IsNumeric(sText)
{
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;

 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
}

function noAtSign (formField) {
    if (formField.indexOf ('@', 0) == -1) {
        return ( true )
    } else {
        return ( false );
    }
}

function noValidPeriod (formField) {
    if (formField.indexOf ( '@', 0 ) > 1 && formField.charAt (formField.length - 1 ) == ']')
        return ( false );

    if (formField.indexOf ( '.', 0 ) == -1)
        return ( true );

    return ( false );
}

function checkmessageform(f){
	if(!Checktext('L\u00FCtfen isminizi yaz\u0131n\u0131z !',f.senderName.value)){ f.senderName.focus();return false; }

	if(!Checktext('L\u00FCtfen e-posta adresinizi yaz\u0131n\u0131z !',f.senderMail.value)){ f.senderMail.focus();return false; }
	if(noAtSign(f.senderMail.value) || noValidPeriod(f.senderMail.value)){
		alert('E-Posta hatal\u0131 !');
		f.senderMail.focus();
		return false;
	}

	if(!Checktext('L\u00FCtfen telefon numaran\u0131z\u0131 yaz\u0131n\u0131z !',f.senderPhone.value)){ f.senderPhone.focus();return false; }
	if(!IsNumeric(f.senderPhone.value)){ alert("Telefon numaras\u0131 hatal\u0131 !");f.senderPhone.focus();return false; }

	if(!Checktext('L\u00FCtfen konu yaz\u0131n\u0131z !',f.subject.value)){ f.subject.focus();return false; }
	if(!Checktext('L\u00FCtfen mesaj metnini yaz\u0131n\u0131z !',f.message.value)){ f.message.focus();return false; }

	return true;
}

function submitmessageform(f, typ){
	if(checkmessageform(f)) {
		if (typ==2 || confirm('Mesaj\u0131n iletilmesini istiyor musunuz ?')) {
			f.submit();	
		}
	}
}

function checkstoryform(f){
	if(!Checktext('L\u00FCtfen ba\u015Far\u0131 hikayenizi yaz\u0131n\u0131z !',f.message.value)){ f.message.focus();return false; }
	if(!Checktext('L\u00FCtfen isminizi yaz\u0131n\u0131z !',f.senderName.value)){ f.senderName.focus();return false; }

	return true;
}