// random img  //////////////////////////////////////////////////////////////
var msg = new Array(
	'<style type=text/css>#headerHome { margin: 0; padding: 0; width: 800px; height: 350px; background: url(./shared/cover/cover_top_01.jpg) no-repeat; float: left; }</style>',
	'<style type=text/css>#headerHome { margin: 0; padding: 0; width: 800px; height: 350px; background: url(./shared/cover/cover_top_02.jpg) no-repeat; float: left; }</style>'
);
document.write(msg[parseInt(Math.random()*msg.length)]);