function toggleLayer( whichLayer )
{
  var elem, vis;
  if( document.getElementById ) // this is the way the standards work
    elem = document.getElementById( whichLayer );
  else if( document.all ) // this is the way old msie versions work
      elem = document.all[whichLayer];
  else if( document.layers ) // this is the way nn4 works
    elem = document.layers[whichLayer];
  vis = elem.style;
  // if the style.display value is blank we try to figure it out here
  if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
    vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
  vis.display = (vis.display==''||vis.display=='block')?'none':'block';
}

function autoSelect(selectTarget) {
 	if(selectTarget != null && ((selectTarget.childNodes.length == 1
      && selectTarget.childNodes[0].nodeName == "#text") || (selectTarget.tagName == "INPUT"
      && selectTarget.type == "text"))) {
  		if(selectTarget.tagName == 'TEXTAREA' || (selectTarget.tagName == "INPUT" && selectTarget.type == "text")) {
  			 selectTarget.select();
  		} else if(window.getSelection) { // FF, Safari, Opera
   			var sel = window.getSelection();
   			var range = document.createRange();
   			range.selectNode(selectTarget.firstChild);
   			sel.removeAllRanges();
   			sel.addRange(range);
  		} else { // IE
   			document.selection.empty();
   			var range = document.body.createTextRange();
   			range.moveToElementText(selectTarget);
   			range.select();
  		}
 	}
}