function preloader() {
     // counter
     var i = 0;
     // create object
     imageObj = new Image();
     // set image list
     images = new Array();
     images[0]="img/TitleHomeHi.jpg"
     images[1]="img/TitleCalendarHi.jpg"
     images[2]="img/TitleContactUsHi.jpg"
     images[3]="img/TitleLabMembersHi.jpg"
     images[4]="img/TitleLinksHi.jpg"
     images[5]="img/TitleNewsHi.jpg"
     images[6]="img/TitleProtocolsHi.jpg"
     images[7]="img/TitlePublicationsHi.jpg"
     images[8]="img/TitleResearchHi.jpg"

     // start preloading
     for(i=0; i<=8; i++) {
          imageObj.src=images[i];
     }
}