//button - default state
var b1 = new Image();
var b2 = new Image();
var b3 = new Image();

b1.src = 'http://cdn.allteamapparel.com/images/top_level/fundraising/learnmore/banner_btn_signup.png';
b2.src = 'http://cdn.allteamapparel.com/images/top_level/fundraising/learnmore/btn_request.png';
b3.src = 'http://cdn.allteamapparel.com/images/top_level/fundraising/learnmore/btn_signup.png';

//button - hover state
var b1h = new Image();
var b2h = new Image();
var b3h = new Image();

b1h.src = 'http://cdn.allteamapparel.com/images/top_level/fundraising/learnmore/banner_btn_signup_hover.png';
b2h.src = 'http://cdn.allteamapparel.com/images/top_level/fundraising/learnmore/btn_request_hover.png';
b3h.src = 'http://cdn.allteamapparel.com/images/top_level/fundraising/learnmore/btn_signup_hover.png';