js页面传参

function setCookie(cname,cvalue,exdays){

    var d = new Date();

    d.setTime(d.getTime() + (exdays*24*60*60*1000));

    var expires = "expires=" + d.toUTCString();

    document.cookie = cname + "=" + cvalue + "; " + expires;

}

function getCookie(cname){

    var name = cname + "=";

    var ca = document.cookie.split(";");

    for(var i=0;i<ca.length;i++){

        var c = ca[i];

        while(c.charAt(0)==' '){

            c = c.substring(1); 

        }

       //if(c.indexof(cname) == 0){

            return c.substring(name.length,c.length);

       //}

    }

    return "";

}

参考链接：http://www.cnblogs.com/mingmingcome/p/5926254.html