// 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;
}



img1 = "images/exp2.gif"; 
img2 = "images/col2.gif"; 
function chng(c_img) { 

if (document[c_img].src.indexOf(img1)!= -1) document[c_img].src = img2; 
else document[c_img].src = img1; 
}