获取当前网页的文件名并删除后缀，如果当前URL是默认页没有文件名可能获取不到。

<script language="javascript" type="text/javascript">

    var docUrl = document.URL;  
    var lastPipe = docUrl.lastIndexOf('/');  
    var lastPeriod = docUrl.lastIndexOf('.');  
    var fileName;  
   
    if (lastPipe < lastPeriod)  
        fileName = docUrl.substring(lastPipe + 1, lastPeriod);  
    //else  
    //    fileName = 'Personal';
   
    fileName.replace(/\b\w+\b/g, function(word){return word.substring(0,1).toUpperCase() +word.substring(1);});
    //alert(fileName);

    document.getElementById(fileName).className = "divfocus";
</script>