JavaScript获取URL参数

文件1：realwall.js

(function(window){var urltool = {getUrlParameterByKey : function(url,key){var result = "",start,parameterStr,len,paras,i;parameterStr = url.split("?");if(parameterStr.length > 1){parameterStr = parameterStr[1];parameterStr = parameterStr.split("#");parameterStr = parameterStr[0];if(parameterStr != ""){paras = parameterStr.split("&");len = paras.length;for(i = 0; i < len; i++){start = paras[i].indexOf(key + "=");if(start == 0){result = paras[i].replace(key + "=", "");break;}}}}return result;}};window.urltool = urltool;
})(window);

文件2：here.js

/** 调用urltool对象，获取URL中指定参数，如果要传中文的参数，需对原始URL链接中的中文参数用encodeURIComponent("参数")进行编码，然后再对结果字符串用decodeURIComponent()解码 */
window.onload = function(){var url = window.location.href;

　　var search = window.location.search;

　　alert(urltool.getUrlParameterByKey(search, "id")); 

    alert(urltool.getUrlParameterByKey(url, "id"));
};

参考：http://www.cnblogs.com/zhaoshun/archive/2009/01/09/1372437.html