分割页面url，获取对应的参数值。

separate.js

/**
*   分割页面url，获取对应的参数值。
*	比如分割 http://www.yy.com/search?q=123&sharefrom=wechat ,返回 Object {q: "123", sharefrom: "wechat"}
*   @param null
*   @return {object}
*/
     
function separate() {
    var originUrl = window.location.search;
    originUrl = originUrl.substr(1);
    var resultObj = {};
    if (originUrl === '') {
    	 return resultObj;
    }
    	var resultArr = originUrl.split('&');
    	for (var i = 0, length = resultArr.length; i < length; i++) {
    	      var resultElem = resultArr[i];
    	      var tempArr = resultElem.split('=');
    	      resultObj[tempArr[0]] = tempArr[1];
    	 }
    return resultObj;   
}