function loadButtons()
{
	var d = document;
	
	if(d.images)
	{
		if(!d.imgBtns)
			d.imgBtns = new Array();
			
		var i;
		var len = d.imgBtns.length;
		var a = loadButtons.arguments;
		
		for(i = 0; i < a.length; ++i)
		{
			d.imgBtns[len]				= new Image();
			d.imgBtns[len].src		= a[i];
			d.imgBtns[len++].name = a[i];
		}
	}
}

function loadMenuButtons()
{
	loadButtons('images/mailto.gif', 'images/backtohome.gif', 'images/sitemap.gif', 'images/mailtover.gif', 'images/backtohomeover.gif', 'images/sitemapover.gif');
}

function swapButtons(btn, name)
{
	var d = document;
	var i;
	
	if(!d.imgBtns)
		return;
	
	var len = d.imgBtns.length;

	for(i = 0; i < len; ++i)
	{
		if(d.imgBtns[i].name == name)
		{
			btn.src = d.imgBtns[i].src;
			break;
		}
	}
}