function include(filename)
{
  var html_doc = document.getElementsByTagName('head').item(0);
  var js = document.createElement('script');
  js.setAttribute('language', 'javascript');
  js.setAttribute('type', 'text/javascript');
  js.setAttribute('src', filename);
  html_doc.appendChild(js);
  return false;
}

onload = function()
{
  if(document.getElementsByClassName == undefined)
  {
	  document.getElementsByClassName = function(className)
	  {
		  var hasClassName = new RegExp("(?:^|\\s)" + className + "(?:$|\\s)");
		  var allElements = document.getElementsByTagName("*");
		  var results = [];

		  var element;
		  for (var i = 0; (element = allElements[i]) != null; i++)
      {
			  var elementClass = element.className;
			  if(elementClass && elementClass.indexOf(className) != -1 && hasClassName.test(elementClass))
				  results.push(element);
		  }
		  return results;
	  }
  }
}