function SearchBox(name, resultsPath, inFrame, label)
{
  this.searchLabel = label;
  this.DOMSearchField = function()
  {  return document.getElementById("MSearchField");  }
  this.DOMSearchBox = function()
  {  return document.getElementById("MSearchBox");  }
  this.OnSearchFieldFocus = function(isActive)
  {
    if (isActive)
    {
      this.DOMSearchBox().className = 'MSearchBoxActive';
      var searchField = this.DOMSearchField();
      if (searchField.value == this.searchLabel) 
      {
        searchField.value = '';
      }
    }
    else
    {
      this.DOMSearchBox().className = 'MSearchBoxInactive';
      this.DOMSearchField().value   = this.searchLabel;
    }
  }
}