问用jQuery预载图像？

function complexLoad(config, fileNames) {

  for (var x = 0; x < fileNames.length; x++) {

    $(""<img>"").attr({

      id: fileNames[x],

      src: config.imgDir + fileNames[x] + config.imgFormat,

      title: ""The "" + fileNames[x] + "" nebula""

    }).appendTo(""#"" + config.imgContainer).css({ display: ""none"" });

  }

};