function HiliteRollover() {
	var a = HiliteRollover.arguments;
	
	if(document.images) {
		for(i = 0; i < a.length; i++)
			document[a[i]].src = eval(a[i] + "roll.src");
	}
}

function UnhiliteRollover() {
	var a = UnhiliteRollover.arguments;
	
	if(document.images) {
		for(i = 0; i < a.length; i++)
			document[a[i]].src = eval(a[i] + "off.src");
	}
}

if(document.images) {
	summary1off = new Image();      
	summary2off = new Image();
	back1off = new Image();      
	back2off = new Image();      
	next1off = new Image();      
	next2off = new Image();
	summary1off.src = "./images/summary1.gif";
	summary2off.src = "./images/summary2.gif";
	back1off.src = "./images/back1.gif";
	back2off.src = "./images/back2.gif";
	next1off.src = "./images/next1.gif";
	next2off.src = "./images/next2.gif";
	summary1roll = new Image();      
	summary2roll = new Image();
	back1roll = new Image();      
	back2roll = new Image();      
	next1roll = new Image();      
	next2roll = new Image();
	summary1roll.src = "./images/summary1roll.gif";
	summary2roll.src = "./images/summary2roll.gif";
	back1roll.src = "./images/back1roll.gif";
	back2roll.src = "./images/back2roll.gif";
	next1roll.src = "./images/next1roll.gif";
	next2roll.src = "./images/next2roll.gif";
}