function seli(thename,theurl){
  document.dump.src='images/mainimage_dump_s.gif';
  document.junk.src='images/mainimage_junk_s.gif';
  document.demo.src='images/mainimage_demo_s.gif';
  document.snow.src='images/mainimage_snow_s.gif';
  thename.src=theurl;   


};
function deli(thename){
  document.dump.src='images/mainimage_dump.gif';
  document.junk.src='images/mainimage_junk.gif';
  document.demo.src='images/mainimage_demo.gif';
  document.snow.src='images/mainimage_snow.gif';


};