normal_image = new Image();
	normal_image.src = "images/h_1r.gif";	
	mouseover_image = new Image();
	mouseover_image.src = "images/h_1.gif";
	
	normal_image2 = new Image();
	normal_image2.src = "images/h_2r.gif";	
	mouseover_image2 = new Image();
	mouseover_image2.src = "images/h_2.gif";
	
	normal_image3 = new Image();
	normal_image3.src = "images/h_3r.gif";	
	mouseover_image3 = new Image();
	mouseover_image3.src = "images/h_3.gif";
	
	normal_image4 = new Image();
	normal_image4.src = "images/h_4r.gif";	
	mouseover_image4 = new Image();
	mouseover_image4.src = "images/h_4.gif";
	
	normal_image5 = new Image();
	normal_image5.src = "images/h_5r.gif";	
	mouseover_image5 = new Image();
	mouseover_image5.src = "images/h_5.gif";
	
	/*repeat the 4 lines above for any subsequent images.*/
	
	function swap(){
	if (document.images){
	for (var x=0;
	x<swap.arguments.length;
	x+=2) {
	document[swap.arguments[x]].src = eval(swap.arguments[x+1] + ".src");
	}
	}
	}