function head()
{
//1
var ranNum= Math.round(Math.random() * 1);
if (ranNum == 0){document.write('<img border="0" src="/support/images/ourlogo.jpg" width="330" height="70">'); } // logo1
if (ranNum == 1){document.write('<img border="0" src="/support/images/ourlogo2.jpg" width="330" height="70">'); } // logo2
}