if (document.images) {

	var nav_blank = new Image();
	nav_blank.src = "/images/nav_blnk_arrow.gif";
	var nav_active = new Image();
	nav_active.src = "/images/nav_act_arrow.gif";
	//var fivesecoff = new Image();
	//fivesecoff.src = "/images/five_seconds.gif";
	//var fivesecon = new Image();
	//fivesecon.src = "/images/five_secondson.gif";
}

function hot(img){
	document[img].src = nav_active.src;
	}

function cold(img){
	document[img].src = nav_blank.src;
	}