var showMode = ''; 
 // set for IE5+ 
 if(document.all){
  showMode='block';
 } 	
 function toggleVis(btn){			  
  mode = 'none';  
  cells = document.getElementsByName(btn); 
  if (cells[0].style.display == 'none'){
   mode = showMode;
  }
  for(j = 0; j < cells.length; j++){
   cells[j].style.display = mode;
  }  
 }

  jsFiles = "none";
  jsSelSheet = "sheetSelDescription";  
  jsSheet = "sheetDescription";  	 

  function swapbg(jsSheet,locateSheetbg) {   
 	if(document.all){
   	 document.getElementById(jsSheet).background=locateSheetbg;	 
	} else {	 
	 //document.getElementById(imgDocID).background.src = ;  
	 document.getElementById(jsSheet).style.background = "url("+locateSheetbg+")";	 
	}
  }