var arrImg = new Array();
	arrImg[1] = 'images/btnHome_over.jpg';
	arrImg[2] = 'images/btnAboutUs_over.jpg';
	arrImg[3] = 'images/btnProducts_over.jpg';
	arrImg[4] = 'images/btnGuestbook_over.jpg';
	arrImg[5] = 'images/btnContactUs_over.jpg';

function preLoad()
{
	var a;
	var loadImg = new Array();
	
	if (document.images)
		for(a=1; a<6; a++)
		{
			loadImg[a] = new Image;
			loadImg[a].src = arrImg[a];
		}
}

function swap(a,b)
{
	document[a].src = arrImg[b];
}

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];
			}
			document.write (j);
		}
	}
}