// JavaScript Document



var state = 'none'; 
var layer = 'none'; 

function showhide2(layer_ref) {

/*
if(layer == layer_ref){
// continue with the script
state = 'block';
layer = 'none';
}else{
state = 'none';
layer = 'none';
}
*/

if (state == 'block') {
state = 'none';
}
else {
state = 'block';
}
if (document.all) { //IS IE 4 or 5 (or 6 beta)
eval( "document.all." + layer_ref + ".style.display = state");
}
if (document.layers) { //IS NETSCAPE 4 or below
document.layers[layer_ref].display = state;
}
if (document.getElementById &&!document.all) {
hza = document.getElementById(layer_ref);
hza.style.display = state;
}
}

function showhide( 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 showlayer(whichLayer){
	showhide( 'news' );
	showhide( 'radarTools' );
	showhide( 'radarImages' );
	showhide( 'radarLocations' );
	showhide( 'radar' );
	
	if(whichLayer == 'none'){
			showhide( 'none' );
	}
	
	if(whichLayer == null){
		
	showhide( 'none' );
		showhide(whichLayer);
	}else{
		
		
		
		showhide(whichLayer);
	}
	
	
}