rnd.today=new Date(); 
rnd.seed=rnd.today.getTime();
function rnd()
{ 
    rnd.seed = (rnd.seed*9301+49297) % 233280;
    return rnd.seed/(233280.0); 
}

function rand(number)
{ 
    return Math.ceil(rnd()*number); 
}

var aaa = rand(1);
switch (aaa)
{
	case 1:
	{
	 // document.write("<a href='http://www.pceggs.com/AdSolution/click/?ADID=zbhKfMPbxTiJUcDq9vQ9eA%3d%3d' target='_blank'><img src='/IndexMainStatic/imgs/jsad/tj_780x100.jpg' border='0'></a>")
		break;
	}	
}