//GLOBAL JAVASCRIPT FUNCTIONS
//---------------------------------------------------------------------------

// Start: random image
//---------------------------------------------------------------------------
 function showImage()
 {
  var ry=Math.floor(Math.random()*myimages.length);
  document.write('<img class="illustration" src="'+myimages[ry]+'" border="0" vspace="0" hspace="0">');
 }
// End: random image
//---------------------------------------------------------------------------

// Start: zoekformulier validatie
//---------------------------------------------------------------------------
 function validateSearchForm(vars)
 {
  var checkString = vars.searchValue.value;
  if (vars.searchValue.value=='' || vars.searchValue.value=='...')  
  {return false;}
  else if ((checkString.length)<3){
   alert('Uw zoekopdracht dient uit minimaal 3 karakters te bestaan');
   return false;
  }
  else {return true;}
 }
// End: zoekformulier validatie
//---------------------------------------------------------------------------