function enquete() {
    features = 'location=0,statusbar=1,scrollbars=1,menubar=0,width=760,height=620,resizable=1';
    // pops up a window containing url optionally named target, optionally having features
    target   = '_blank';
    var theWindow;
    
    theWindow = null;
    theWindow = window.open('tevreden.php', target, features);
    theWindow.focus();
    return false;
}



// Hoofdmenu
var mainMenuItems = new Array();
var i=0,a='images/nl/',n='',e='.gif';
var aNames = Array('btn_werkwijze','btn_werkvelden','btn_referenties', 'btn_artikelen', 'btn_werkenbij','btn_links','btn_nieuws','btn_contact');

//var aNames = Array('btn_werkwijze','btn_werkvelden', 'btn_artikelen', 'btn_werkenbij','btn_links','btn_nieuws','btn_contact');

for (i=0;i<aNames.length;i++) {
  n=aNames[i];
  mainMenuItems[i] = Array(a+n+e,a+n+'_r'+e,a+n+'_r'+e,'btn_'+i);
}