<!--

var flag=false;


// This function is used to preload all the images for rollovers
// and initialise all the objects

function initialise() {
// Preloading images goes here


  if (document.images) {
      home_on            = new Image(); home_on.src            = "/images/home_on.gif";
      lettering_on       = new Image(); lettering_on.src       = "/images/lettering_on.gif";
      commercial_on      = new Image(); commercial_on.src      = "/images/commercial_on.gif";
      teaching_on        = new Image(); teaching_on.src        = "/images/teaching_on.gif";
      publications_on    = new Image(); publications_on.src    = "/images/publications_on.gif";
      exhibitions_on     = new Image(); exhibitions_on.src     = "/images/exhibitions_on.gif";
      drawings_on        = new Image(); drawings_on.src        = "/images/drawings_on.gif";
      contact_on         = new Image(); contact_on.src         = "/images/contact_on.gif";
      return  (flag = true);
   }

} // end Initialise

  if (document.images) {
      home               = new Image(); home.src               = "/images/home.gif";
      lettering          = new Image(); lettering.src          = "/images/lettering.gif";
      commercial         = new Image(); commercial.src         = "/images/commercial.gif";
      teaching           = new Image(); teaching.src           = "/images/teaching.gif";
      publications       = new Image(); publications.src       = "/images/publications.gif";
      exhibitions        = new Image(); exhibitions.src        = "/images/exhibitions.gif";
      drawings           = new Image(); drawings.src           = "/images/drawings.gif";
      contact            = new Image(); contact.src            = "/images/contact.gif";
  }


function turnOn(Name) {
    if (document.images && (flag == true)) {
        document[Name].src = eval(Name + "_on.src");
    }
}

function turnOff(Name) {
 if (document.images) {
        document[Name].src = eval(Name + ".src");
 }
}

// -->