function GetRandomCSS() {
   mylocation = location.hostname;
   myprotocol = location.protocol;
   var cssList = new Array(
        'assets/templates/site_design/css/headimage1_micro.css',
       'assets/templates/site_design/css/headimage2_micro.css',
        'assets/templates/site_design/css/headimage3_micro.css',
       'assets/templates/site_design/css/headimage4_micro.css',
		'assets/templates/site_design/css/headimage5_micro.css',
		'assets/templates/site_design/css/headimage6_micro.css',
		'assets/templates/site_design/css/headimage7_micro.css',
		'assets/templates/site_design/css/headimage8_micro.css',
        'assets/templates/site_design/css/headimage9_micro.css',
		'assets/templates/site_design/css/headimage10_micro.css',
		'assets/templates/site_design/css/headimage11_micro.css',
       'assets/templates/site_design/css/headimage12_micro.css',
        'assets/templates/site_design/css/headimage13_micro.css',
       'assets/templates/site_design/css/headimage14_micro.css',
		'assets/templates/site_design/css/headimage15_micro.css',
		'assets/templates/site_design/css/headimage16_micro.css');
   var randnum = Math.floor(cssList.length *
        Math.random());
   return cssList[randnum];
}
function changeCSS() {
   document.getElementById('cssHolder').setAttribute(
        'href',
        GetRandomCSS());
}