function doesNotXist(userEntry)
   {
   if (userEntry==null || userEntry==" " || userEntry=="") {return true;}
     else {return false;} 
   }
function isEmail(str) {
  // are regular expressions supported?
  var supported = 0;
  if (window.RegExp) {
    var tempStr = "a";
    var tempReg = new RegExp(tempStr);
    if (tempReg.test(tempStr)) supported = 1;
  }
  if (!supported) 
    return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
  var r1 = new RegExp("(@.*@)|(\\.\\.)|(@\\.)|(^\\.)");
  var r2 = new RegExp("^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,4}|[0-9]{1,3})(\\]?)$");

  return (!r1.test(str) && r2.test(str));
}
function veriForm()
    {
     var message="";
     var erreurs=0;
	 var lang ="";

     if(doesNotXist(document.forms.oplossing.SENDERNAME.value) || document.forms.oplossing.SENDERNAME.value == 'uw naam')
       {
		message+="Gelieve uw naam in te vullen\n";
        erreurs+=1;
       }
	 if(!isEmail(document.forms.oplossing.SENDERMAIL.value))
       {
		message+="Gelieve een geldig e-mailadres in te vullen aub\n"
        erreurs+=1;
       }    

	
	 if(erreurs>3)
       {
       alert('Gelieve het formulier in te vullen alvorens het te versturen aub');
	   return false;
       }
       else if(message!="")
         {
          alert(message);
		  return false;
         }
          else
         {
		  return true;
         }
    }