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 autotab(original,destination){
	if (original.getAttribute&&original.value.length==original.getAttribute("maxlength")) destination.focus();
}


function popup(url) {
var msgWindow=open(url,'viewclip','toolbar=0,location=0,directories=0,status=1,menubar=0,scrollbars=1,resizable=1,width=600,height=400');
msgWindow.opener = this.window;
}