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<?php
function fnDisplay_DropDown($aFields, $sName, $sSel=NULL, $sClass=NULL, $sID=NULL)
{
  if(empty($aFields) || empty($sName))
    die("Parameter missing in call to fnDisplay_DropDown()");
    
  if(!(is_array($aFields)))
    die("Array passed to fnDisplay_DropDown() is in invalid format.");
    
  $sHTML = sprintf(" <select name=\"%s\"%s%s>\n", $sName,
    !empty($sClass) ? " class=\"$sClass\"" : $sClass,
    !empty($sID) ? " id=\"$sID\"" : $sID);
    
  foreach($aFields as $sVar=>$sVal)
  {
    $sSelect = NULL;
    if($sVar === $sSel)
      $sSelect = " selected=\"selected\"";
    $sHTML .= sprintf("   <option value=\"%s\"%s>%s</option>\n", 
      $sVar, $sSelect, htmlspecialchars($sVal));
  }
    
  $sHTML .= sprintf(" </select>\n");
  
  return $sHTML;
}
?>