function getCookie(cookieName) {
                 var cookieString = document.cookie;
                 var start = cookieString.indexOf(cookieName + '=');
                 if (start == -1) 
                  return "";
                 start += cookieName.length + 1;
                 var end = cookieString.indexOf(';', start);
                 if (end == -1) return unescape(cookieString.substring(start));
                 return decodeURI(cookieString.substring(start, end));
                }


String.prototype.trim = function()
{
    return this.replace(/(^\s*)|(\s*$)/g, "");  
}

function checkIsNotEmpty(str)
{
    if(str.trim()=="")
        return false;
    else
        return true;
}//~~~