// JavaScript Document

function formCheck(f)
{
	senderror = "no";
	
	if(f.contactpersoon.value == ""){
        document.getElementById('contactpersoon').className = "error";
		senderror = "yes";
	} else {
		document.getElementById('contactpersoon').className = 'no_error';
	}
	
	if(f.plaats.value == ""){
        document.getElementById('plaats').className = "error";
		senderror = "yes";		
  	} else {
		document.getElementById('plaats').className = 'no_error';
	}
	
   var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
   var address = f.emailadres.value;
   if(reg.test(address) == false) {
        document.getElementById('emailadres').className = "error";
		senderror = "yes";	
   }

	if (senderror == "yes")	{
	document.getElementById('foutmelding').className = "error";
	return false;
	} else {
	document.getElementById('foutmelding').className = 'no_error';
	return true;	
	} 

}