var cssurl= new Array();
cssurl[0]="/css/bgrdm0.css";
cssurl[1]="/css/bgrdm1.css";
cssurl[2]="/css/bgrdm2.css";
cssurl[3]="/css/bgrdm3.css";
cssurl[4]="/css/bgrdm4.css";
cssurl[5]="/css/bgrdm5.css";
cssurl[6]="/css/bgrdm6.css";
cssurl[7]="/css/bgrdm7.css";
cssurl[8]="/css/bgrdm8.css";
cssurl[9]="/css/bgrdm9.css";
cssurl[10]="/css/bgrdm10.css";
cssurl[11]="/css/bgrdm11.css";
n= Math.floor(Math.random()*cssurl.length);
document.write("<link rel='stylesheet' type='text/css' href='"+cssurl[n]+"'>");