if (document.images) {	

	var race_information_b = new Image();
	race_information_b.src = "/swap/race_information_b.gif";
	var race_information_a = new Image();
	race_information_a.src = "/swap/race_information_a.gif";
	
	var registration_b = new Image();
	registration_b.src = "/swap/registration_b.gif";
	var registration_a = new Image();
	registration_a.src = "/swap/registration_a.gif";
	
	var health_wellness_b = new Image();
	health_wellness_b.src = "/swap/health_wellness_b.gif";
	var health_wellness_a = new Image();
	health_wellness_a.src = "/swap/health_wellness_a.gif";
	
	var race_results_photographs_b = new Image();
	race_results_photographs_b.src = "/swap/race_results_photographs_b.gif";
	var race_results_photographs_a = new Image();
	race_results_photographs_a.src = "/swap/race_results_photographs_a.gif";
	
	var awards_prizes_b = new Image();
	awards_prizes_b.src = "/swap/awards_prizes_b.gif";
	var awards_prizes_a = new Image();
	awards_prizes_a.src = "/swap/awards_prizes_a.gif";
	
	var marathon_store_b = new Image();
	marathon_store_b.src = "/swap/marathon_store_b.gif";
	var marathon_store_a = new Image();
	marathon_store_a.src = "/swap/marathon_store_a.gif";
	
	var volunteer_b = new Image();
	volunteer_b.src = "/swap/volunteer_b.gif";
	var volunteer_a = new Image();
	volunteer_a.src = "/swap/volunteer_a.gif";
	
	var charity_program_b = new Image();
	charity_program_b.src = "/swap/charity_program_b.gif";
	var charity_program_a = new Image();
	charity_program_a.src = "/swap/charity_program_a.gif";
	
	var sponsors_b = new Image();
	sponsors_b.src = "/swap/sponsors_b.gif";
	var sponsors_a = new Image();
	sponsors_a.src = "/swap/sponsors_a.gif";
	
	var email_to_friend_b = new Image();
	email_to_friend_b.src = "/swap/email_to_friend_b.gif";
	var email_to_friend_a = new Image();
	email_to_friend_a.src = "/swap/email_to_friend_a.gif";
	
	var hotel_travel_info_b = new Image();
	hotel_travel_info_b.src = "/swap/hotel_travel_info_b.gif";
	var hotel_travel_info_a = new Image();
	hotel_travel_info_a.src = "/swap/hotel_travel_info_a.gif";
}


function swap(imgName,imgName2) {
	if (typeof(imgName) != 'object') {
		imgName = document.getElementById(imgName);
	}
	if (document.images) 
		imgName.src = eval(imgName2 + "_b.src");
}

function noswap(imgName,imgName2) {
	if (typeof(imgName) != 'object') {
		imgName = document.getElementById(imgName);
	}
	if (document.images)
		imgName.src = eval(imgName2 + "_a.src");
}