使用jQuery延迟加载js文件

//异步加载js文件并调用函数

function delayCall(calledFunction, funcParams, jsUrl)

{

    if (eval('typeof '+calledFunction) == 'function') {

        eval(calledFunction+'(funcParams)');

    } else {

        jQuery.ajax({

            type: 'GET',

            url: jsUrl,

            data: {},

            dataType: 'script',

            cache: true,

            async: true,

            success: function () {

                eval(calledFunction+'(funcParams)');

            }

        });

    }

}

//同步加载js文件

function syncLoad(checkFunction, jsUrl)

{

    if (eval('typeof '+checkFunction) != 'function') {

        jQuery.ajax({

            type: 'GET',

            url: jsUrl,

            data: {},

            dataType: 'script',

            cache: true,

            async: false,

        });

    }

}  

http://blog.csdn.net/flynetcn/article/details/45058987