get script

// more or less stolen form jquery core and adapted by paul irish
  function getScript(url,success){
    var script=document.createElement('script');
    script.src=url;
    var head=document.getElementsByTagName('head')[0],
        done=false;
    // Attach handlers for all browsers
    script.onload=script.onreadystatechange = function(){
      if ( !done && (!this.readyState
           || this.readyState == 'loaded'
           || this.readyState == 'complete') ) {
        done=true;
        success();
        script.onload = script.onreadystatechange = null;
        head.removeChild(script);
      }
    };
    head.appendChild(script);
  }
  getScript('http://code.jquery.com/jquery-latest.min.js',function() {
    if (typeof jQuery=='undefined') {
      msg='Sorry, but jQuery wasn\'t able to load';
    } else {
      msg='This page is now jQuerified with v' + jQuery.fn.jquery;
      if (otherlib) {msg+=' and noConflict(). Use $jq(), not $().';}
    }
    return showMsg();
  });
  function showMsg() {
    el.innerHTML=msg;
    b.appendChild(el);
    window.setTimeout(function() {
      if (typeof jQuery=='undefined') {
        b.removeChild(el);
      } else {
        jQuery(el).fadeOut('slow',function() {
          jQuery(this).remove();
        });
        if (otherlib) {
          $jq=jQuery.noConflict();
        }
      }
    } ,2500);    
  }
})();