function getParam(paramName) {            
    paramValue = "", isFound = !1;         
    if (this.location.search.indexOf("?") == 0 && this.location.search.indexOf("=") > 1) {               
        arrSource = unescape(this.location.search).substring(1, this.location.search.length).split("&"), i = 0;               
        while (i < arrSource.length && !isFound) arrSource[i].indexOf("=") > 0 && arrSource[i].split("=")[0].toLowerCase() ==                  
        paramName.toLowerCase() && (paramValue = arrSource[i].split("=")[1], isFound = !0), i++         
    }           
    return paramValue == "" && (paramValue = null), paramValue      
}



  function getParam(paramName) {
        paramValue = "";
        isFound = false;
        if (this.location.search.indexOf("?") == 0 && this.location.search.indexOf("=") > 1) {
            arrSource = unescape(this.location.search).substring(1, this.location.search.length).split("&");
            i = 0;
            while (i < arrSource.length && !isFound) {
                if (arrSource[i].indexOf("=") > 0) {
                    if (arrSource[i].split("=")[0].toLowerCase() == paramName.toLowerCase()) {
                        paramValue = arrSource[i].split("=")[1];
                        isFound = true;
                    }
                }
                i++;
            }
        }
        return paramValue;
    }