google.load("jquery", "1.2.6");
google.setOnLoadCallback(function() {
    var myRe     = /\/([^\/]+)$/; 
    var myArray  = myRe.exec(document.URL);   // get just the *.html portion of the URL
    var filename = "";
    if(myArray.length>1){
        filename = myArray[1];
    }
    $('a[@href='+filename+']').addClass('here');  // if the anchor is pointing to this document, mark it as 'here'
 }
);