function change_filter()
{
  this.document.forms[0].submit();  
}

function clear_search()
{
  this.document.forms[0].search.value = "";
  this.document.forms[0].submit();
}

function change_sort(newSort,sortDir)
{
  this.document.forms[0].sort.value = newSort;
  this.document.forms[0].sortDir.value = sortDir;
  this.document.forms[0].submit();
}

function loadF1000(fyear, fnum)
{
  this.document.location.href = 'f1000.aspx?fyear=' + fyear + '&fnum=' + fnum;
}