function preloader() 

{
     // counter
     var i = 0;

	// create object
     imageObj = new Image();

     // set image list
     images = new Array();
     images[0]="/images/tnav_home_a.png"
     images[1]="/images/tnav_forum_a.png"
     images[2]="/images/tnav_media_a.png"
     images[3]="/images/tnav_products_a.png"
     images[4]="/images/tnav_resources_a.png"
     images[5]="/images/tnav_teamdiesel_a.png"

     // start preloading
     for(i=0; i<=5; i++) 
     {
          imageObj.src=images[i];
     }
}