if (document.layers){
document.captureEvents(Event.MOUSEDOWN);
}

function Datum() {

var today = new Date();
var thisyear = today.getFullYear();
var thismonth = today.getMonth();
var thisdate = today.getDate();


temp= "Gerard Lenting"+ thisyear+ " versie:"+ thismonth 
return temp;
}

function rtclickcheck(keyp){

if( typeof test == 'undefined') var bmessage = "Gerard Lenting";
else if(test == 1) var  bmessage = (Datum());
else if(test == 2) var  bmessage = (Datum());	
		
		
		  if (document.layers && keyp.which != 1) {
    alert(bmessage);
    return false;
  }

  if (document.all && event.button != 1) { 
    alert(bmessage);
    return false;
  }
}


document.onmousedown = rtclickcheck