document.write("<style> ");
document.write("body { ");
document.write("margin: 0px; ");
document.write("}  ");
document.write("</style> ");
i=Math.round(7*Math.random()%7);
document.write("<iframe frameborder=0 width=377 height=355 scrolling=no src='http://www.iupt.com/iu4/music/m"+i+".htm'></iframe>")
document.write("<br>");