function CurrURL(){
    var myurl = document.location.href;
    myurl = myurl.replace(/&{2,}/g,"");
    var url_arr = myurl.match(/([^/]+:\/\/)(.[^/]+)(.*)/);
    this.url_nocharset = myurl;
    this.charset = "";
    this.protocol = url_arr[1];
    this.domain = url_arr[2];
    var qStr = url_arr[3];
    var pattern = /(\?|&)(Charset=)([^&]+)/;
    var para_arr = qStr.match(pattern);
    if(para_arr!=null){
        this.charset = para_arr[3];
        this.url_nocharset = myurl = myurl.replace(pattern,"");
    }
}