if(document.images)
{
	// Preload original images (to show when page loads)
	var pic1_init = new Image();
	pic1_init.src="images/aboutUp.gif";
	var pic2_init = new Image();
	pic2_init.src="images/plansUp.gif";
	var pic3_init = new Image();
	pic3_init.src="images/supportUp.gif";
	var pic4_init = new Image();
	pic4_init.src="images/contactUp.gif";
	//Preload images that will show on the mouseover event
	var pic1_new= new Image();
	pic1_new.src="images/aboutOver.gif";
	var pic2_new= new Image();
	pic2_new.src="images/plansOver.gif";
	var pic3_new= new Image();
	pic3_new.src="images/supportOver.gif";
	var pic4_new= new Image();
	pic4_new.src="images/contactOver.gif";
}

function change_it(the_name)
{
	if (document.images)
	{
		document.images[the_name].src= eval(the_name + "_new.src");
	}
}
function change_back(the_name)
{
	if (document.images)
	{
		document.images[the_name].src= eval(the_name + "_init.src");
	}
}