/*****************************************************
 * Title: fvbbmenu-utils.js
 *  Date: 09/26/2003
 * 
 * Author: Scott S. Baker
 *
 * Description:
 * This script is used in the creation of the slide-out
 * menus for ns4, ns6, mozilla, opera, ie4, ie5 on 
 * mac and win32.
 *****************************************************/

function swapImgRestore() 
{ 
	var i;
	var x;
	var a=document.sr; 
	
	for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) 
		x.src=x.oSrc;
}

function preloadImages() 
{ 
	var d=document; 
	if(d.images)
	{ 
		if(!d.p) 
			d.p=new Array();
		
		var i;
		var j=d.p.length;
		var a=this.preloadImages.arguments; 
		
		for(i=0; i<a.length; i++)
			if(a[i].indexOf("#")!=0)
			{ 
				d.p[j]=new Image; 
				d.p[j++].src=a[i];
			}
	}
}

function findObj(n, d) 
{ 
	var p;
	var i;
	var x;  
	
	if(!d) 
		d=document; 
	
	if((p=n.indexOf("?"))>0&&parent.frames.length) 
	{
		d=parent.frames[n.substring(p+1)].document; 
		n=n.substring(0,p);
	}

	if(!(x=d[n])&&d.all) 
		x=d.all[n]; 
	
	for (i=0;!x&&i<d.forms.length;i++) 
		x=d.forms[i][n];

	for(i=0;!x&&d.layers&&i<d.layers.length;i++) 
		x=findObj(n,d.layers[i].document);

	if(!x && document.getElementById) 
		x=document.getElementById(n); 
		
	return x;
}

function swapImage() 
{ 
	var i;
	var j=0;
	var x;
	var a=this.swapImage.arguments; 
	
	document.sr=new Array; 
	for(i=0;i<(a.length-2);i+=3)
		if ((x=findObj(a[i]))!=null)
		{
			document.sr[j++]=x; 
			if(!x.oSrc) 
				x.oSrc=x.src; 
			
			x.src=a[i+2];
		}
}

function showHideLayers() 
{
	var i;
	var p;
	var v;
	var obj;
	var args=this.showHideLayers.arguments;
	
	for (i=0; i<(args.length-2); i+=3)
		if ((obj=findObj(args[i]))!=null) 
		{ 
			v=args[i+2];
			if (obj.style) 
			{ 
				obj=obj.style; 
				v=(v=='show')?'visible':(v='hide')?'hidden':v; 
			}
			obj.visibility=v; 
		}
}