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';
    }
    
     window.onload = function() {
	      settings = {
	          tl: { radius: 10 },
	          tr: { radius: 10 },
	          bl: { radius: 10 },
	          br: { radius: 10 },
	          antiAlias: true,
	          autoPad: true
	      }
	      var myBoxObject = new curvyCorners(settings, "rounded");
	      myBoxObject.applyCornersToAll();
	  }