向URL末尾添加查詢字符串參數的輔助函數及獲取Url的參數函數

function addURLParam(url,name,value){  
  url += (url.indexOf('?')==-1 ? '?' : '&');  
  url += encodeURIComponent(name) + '=' + encodeURIComponent(value);  
  return url;  
}  

獲取

/*獲取URL參數*/
function getQueryString(url, name) {
    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
    var r = url.match(reg);
    if (r != null) return unescape(r[2]);
    return null;
}