function validate_required(field,alerttxt)
{
with (field)
{
if (value==null||value==""||value=="Enter Keywords or SKU")
  {alert(alerttxt);return false;}
else {return true}
}
}

function validate_form(thisform)
{
with (thisform)
{
if (validate_required(search,"Please type in your search terms.")==false)
  {search.focus();return false;}
}
}