function header()
{
//10
var ranNum= Math.round(Math.random() * 10);
if (ranNum == 0){document.write('<link href="css/head1.css" rel="stylesheet" type="text/css" media="all" />'); } // header1
if (ranNum == 1){document.write('<link href="css/head2.css" rel="stylesheet" type="text/css" media="all" />'); } // header2
if (ranNum == 2){document.write('<link href="css/head3.css" rel="stylesheet" type="text/css" media="all" />'); } // header3
if (ranNum == 3){document.write('<link href="css/head4.css" rel="stylesheet" type="text/css" media="all" />'); } // header4
if (ranNum == 4){document.write('<link href="css/head5.css" rel="stylesheet" type="text/css" media="all" />'); } // header5
if (ranNum == 5){document.write('<link href="css/head6.css" rel="stylesheet" type="text/css" media="all" />'); } // header6
if (ranNum == 6){document.write('<link href="css/head7.css" rel="stylesheet" type="text/css" media="all" />'); } // header7
if (ranNum == 7){document.write('<link href="css/head8.css" rel="stylesheet" type="text/css" media="all" />'); } // header8
if (ranNum == 8){document.write('<link href="css/head9.css" rel="stylesheet" type="text/css" media="all" />'); } // header9
if (ranNum == 9){document.write('<link href="css/head10.css" rel="stylesheet" type="text/css" media="all" />'); } // header10
if (ranNum == 10){document.write('<link href="css/head11.css" rel="stylesheet" type="text/css" media="all" />'); } // header11
}
