//the importJs.js script
window.addEventListener('load',importExtJs,false);

function importExtJs() {
	//enter the urls of each script
	var scriptArray = ['skin/js/thumbnailviewer2.js'
		   	   ,'skin/js/navigation_menu.js',
		   	   'http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js'
			   ];

	var scr;
	var head = document.getElementsByTagName('head')[0];
	if (head) {
		for (var i=0; i<scriptArray.length; ++i) {
			scr = document.createElement('script');
			scr.setAttribute('type','text/javascript');
			scr.setAttribute('src',scriptArray[i]);
			head.appendChild(scr);
		}
	}
}