function nav1(startpos)
{
var oForm1 = document.forms['formcompare1'];
oForm1.action = 'promotions.asp';
oForm1.hFrom.value = startpos;
oForm1.submit();
}

function nav2(startpos)
{
var oForm1 = document.forms['formcompare2'];
oForm1.action = 'promotions.asp';
oForm1.hFrom.value = startpos;
oForm1.submit();
}