w1 = new Image();  w1.src = "work_hand1.gif";

   w2 = new Image();  w2.src = "work_hand2.gif";

   w3 = new Image();  w3.src = "work_hand3.gif";

   w4 = new Image();  w4.src = "work_hand4.gif";



function H(indexID, newImage) {

   document.images[indexID].src = eval(newImage + ".src");

}



function wstatus(m){

   window.status = m;

   return true;

}



function Displaywork(w) {

   document.getElementById(w).style.display = "block";

   document.getElementById(w+'_txt').style.display = "block";

   document.getElementById('bg2').style.display = "block";

   document.getElementById('bg3').style.display = "block";

}



function Goback() {

   document.getElementById('sj_txt').style.display = "none";

   document.getElementById('rd_txt').style.display = "none";

   document.getElementById('mb_txt').style.display = "none";

   document.getElementById('sj').style.display = "none";

   document.getElementById('rd').style.display = "none";

   document.getElementById('mb').style.display = "none";

   document.getElementById('bg2').style.display = "none";

   document.getElementById('bg3').style.display = "none";

   wstatus('');

}