/**
 * [获得cookie]
 * @param  {[type]} name
 * @return {[type]}      
 */
get: function(name) {
   var v = window.document.cookie.match('(^|;) ?' + name + '=([^;]*)(;|$)');
return v ? v[2] : null;

},/**


[写入cookie]


@param {[type]} name  [cookie name]


@param {[type]} value [cookie value]


@param {[type]} days

/

set: function (name,value,days) {

var d = new Date;

d.setTime(d.getTime() + 2460601000*days);
window.document.cookie = name + "=" + value + ";path=/;expires=" + d.toGMTString();

},/**


[删除cookie]


@param  {[type]} name 


@return {[type]}

*/

delete: function (name) {

this.set(name,'',-1);

}