function random_banner(){
images = new Array(15);
images[0] = '<div class="header" style="background-image: url(banner/banner01.jpg);">';
images[1] = '<div class="header" style="background-image: url(banner/banner02.jpg);">';
images[2] = '<div class="header" style="background-image: url(banner/banner03.jpg);">';
images[3] = '<div class="header" style="background-image: url(banner/banner04.jpg);">';
images[4] = '<div class="header" style="background-image: url(banner/banner05.jpg);">';
images[5] = '<div class="header" style="background-image: url(banner/banner06.jpg);">';
images[6] = '<div class="header" style="background-image: url(banner/banner07.jpg);">';
images[7] = '<div class="header" style="background-image: url(banner/banner08.jpg);">';
images[8] = '<div class="header" style="background-image: url(banner/banner09.jpg);">';
images[9] = '<div class="header" style="background-image: url(banner/banner10.jpg);">';
images[10] = '<div class="header" style="background-image: url(banner/banner11.jpg);">';
images[11] = '<div class="header" style="background-image: url(banner/banner12.jpg);">';
images[12] = '<div class="header" style="background-image: url(banner/banner13.jpg);">';
images[13] = '<div class="header" style="background-image: url(banner/banner14.jpg);">';
images[14] = '<div class="header" style="background-image: url(banner/banner15.jpg);">';
index = Math.floor(Math.random() * images.length);
return images[index];
}
