function setDiv(nm,value){
  if (document.all) {   // IE 4
     style=document.all(nm).style
  } 
  else {
      if (document.getelementById) {  // IE 5 & NN 6
          style = document.getElementById(nm).style
      }
     else {
            if (document.layers) {  // IE 4
               style = document.layers[nm]
            }
           else {
                  style = null   // all other browsers
           } 
      }
  } 
  if (style) {
     if (value) {
        style.visibility= "inherit" // element inherits visibility 
     }
    else {
          style.visibility= "hidden"  // hide the element
     }
   }
}