function EnableShim(object) {	
	var curID = object.id;
	if (curID.indexOf('tree') != -1) {
		var curUL = document.getElementById('node' + curID.charAt(curID.length-1));
		var Shim = document.getElementById('Shim');
		
		Shim.style.width = parseInt(curUL.style.width);
		Shim.style.height = 70;
		Shim.style.left = parseInt(curUL.style.left)+((screen.width-900)/2)-12;
		Shim.style.top = parseInt(curUL.style.top)+90;
		Shim.style.display = ""; 
		
	}
}

function DisableShim() {
	document.getElementById('Shim').style.display="none";	
}

function navMenuExp(){
 	if (navigator.appVersion.indexOf("MSIE")==-1) {
 		return;
 	}

	var i,k,g,lg,r=/\s*act/,nn='',c,cs='act',bv='navMenubar';
	for ( i=0; i<10; i++)
 	{
 		g=document.getElementById(bv+nn);
 		if(g)	{
 			lg=g.getElementsByTagName("LI");		
 			if(lg) { 				 			
 				for ( k=0; k<lg.length; k++) {
				 	lg[k].onmouseover=function()	{	
				 		c=this.className;	
				 		cl=(c)?c+' '+cs:cs;		
				 		this.className=cl; 	
				 		EnableShim(this);	
				 	};
 				 	lg[k].onmouseout=function() 	{	
 				 		c=this.className;	
 				 		this.className=(c)?c.replace(r,''):''; 
 				 		DisableShim();
  				 	};
 				 }
 			}
 		}
 		nn = i + 1;
 	}
}