// JScript File

function toggleMe(a){
  var e=document.getElementById(a);
  if(!e)return true;
  if(e.style.display=="none"){
    e.style.display="block"
  } else {
    e.style.display="none"
  }
  return true;
}


function highlight(TR,color){
  var e=document.getElementById(TR);
  e.style.background=color
  return true;
}


img1en = "images/exp2.gif"; 
img2en = "images/col2.gif"; 

function chng(e_img) { 
if (document[e_img].src.indexOf(img1en)!= -1) document[e_img].src = img2en ; 
else document[e_img].src = img1en ; 
}