function validate_required(field,alerttxt)
{
with (field)
{
if (value==null||value=="")
  {alert(alerttxt);return false}
else {return true}
}
}function validate_form(thisform)
{
with (thisform)
{
if (validate_required(SearchWord,"Please enter a value for the \"search word\" field!")==false)
  {SearchWord.focus();return false}
}
}