(function($) { 
var cache = [];
$.preLoadImages = function() {
var args_len = arguments.length;
for (var i = args_len; i--;) {
var cacheImage = document.createElement('img');
cacheImage.src = "/bizdemo49115/img/design/slider"+arguments[i]+".jpg";
cache.push(cacheImage);
}
}
})(jQuery)
jQuery.preLoadImages("1","2","3","4","5");