function chkData() {
		if(document.pftp.clientName.value <= 0)
			{alert("Skriv inn ditt navn"); document.pftp.clientName.focus(); return false;}
		if(document.pftp.clientEMail.value <= 0)
			{alert("Skriv inn din e-post adresse"); document.pftp.clientEMail.focus(); return false;}
		if(document.pftp.clientTlf1.value <= 0)
			{alert("Skriv inn ditt telefonnummer"); document.pftp.clientTlf1.focus(); return false;}
		else {
		  window.open('mess.html','dtl','width=360,height=190');
		  return true;
	    }
	}