// v3.0
function MM_preloadImages()
{
	var d = document;
	if ( d.images )
	{
		if ( !d.MM_p ) d.MM_p = new Array();

		var i,j = d.MM_p.length, a = MM_preloadImages.arguments;

		for ( i = 0 ; i < a.length; i++ )
		{
			if ( a[i].indexOf("#") != 0 )
			{
				d.MM_p[j]       = new Image;
				d.MM_p[j++].src = a[i];
			}
		}
	}
}

function smartRollover()
{
	if ( document.getElementsByTagName )
	{
		var images = document.getElementsByTagName("img");

		for ( var i = 0 ; i < images.length ;  i++ )
		{
			if ( images[i].getAttribute("src").match("_off\\.") )
			{
				images[i].onmouseover = function()
				{
					this.setAttribute("src", this.getAttribute("src").replace("_off.", "_on."));
				}

				images[i].onmouseout = function()
				{
					this.setAttribute("src", this.getAttribute("src").replace("_on.", "_off."));
				}
			}
		}
	}
}

if ( window.addEventListener )
{
	window.addEventListener("load", smartRollover, false);
}
else if ( window.attachEvent )
{
	window.attachEvent("onload", smartRollover);
}