function fun_email(str, name) {
    var c1, c2, c3, c4, err = "";
    if (str.length != 0) {
        var i1 = 0
        var i2 = 0

        for (i = 1; i < str.length; i++) {
            c1 = str.substr(i, 1);
            if (c1 == "@") i1 = i1 + 1;
        }

        for (i = 3; i < str.length; i++) {
            c2 = str.substr(i, 1);
            if (c2 == ".") i2 = i2 + 1;
        }

        c1 = str.substr(0, 1);
        c2 = str.substr(str.length - 1, 1);
        c3 = str.substr(0, 1);

        if (i1 != 1 | i2 < 1 | i2 > 3 | c1 == "@" | c2 == "@" | c3 == "." | c2 == ".") {
            //alert(c2+'/'+c3+'/'+i1+'/'+i2);
            err = name + "无效！";
        }
    }
    else
    { err = "请输入" + name; }

    return err;
}

function fun_number(str, name) {
    var c1, err = "";
    if (str.length != 0) {
        if (isNaN(str)) { err = "请输入数字 " + name + " !"; }
        else
        { if (parseInt(str) < 0) { err = "The number should be positive !"; } }
    }
    else
    { err = "请输入你的 " + name; }

    return err;
}


function JSAddFavorite()
{
        if ( window.sidebar && "object" == typeof( window.sidebar ) && "function" == typeof( window.sidebar.addPanel ) )
        {
              //  firefox
                window.sidebar.addPanel( '强生儿童健康中心', 'http://www.tylenol.com.cn/children/', '' );
        }
        else if ( document.all && "object" == typeof( window.external ) )
        {
                //  ie                
				window.external.addFavorite( 'http://www.tylenol.com.cn/children/', '强生儿童健康中心' );
        }

}

String.prototype.Trim = function() {
    return this.replace(/(^\s*)|(\s*$)/g, "");
}