아주 간단한 javascript loaderloadJS = function(jsPath) {var script = document.createElement('script');script.type = 'text/javascript';script.async = true;if(jsPath.indexOf('http') == 0) script.src = jsPath;else script.src = "//"+jsPath;var entry = document.getElementsByTagName('script')[0];entry.parentNode.insertBefore(script, entry);}