// JavaScript Document
$(function(){

	/* All variables can be changed here */
	
	var images = ['../images/layout/sl_bv.jpg','../images/layout/sl_ph.jpg','../images/layout/sl_rc.jpg','../images/layout/sl_lh.jpg','../images/layout/sl_kr.jpg','../images/layout/sl_kb.jpg','../images/layout/sl_hj.jpg'];
	var idefault = '../images/layout/sl_vb.jpg';
	var path = 'index_files/';
	var homeid = 'welcome';
	var class1 = ".nav";
	var class2 = ".navE";
	var class3 = ".foot";
	var pictureid = "pictures";
	
	/* No need to change after this line*/
	 
	$(class1).click(function(){
		var which = ($(this).attr("id") == homeid)
			? idefault
			: images[Math.floor(Math.random() * images.length)];	
		$("#"+pictureid).attr("src", path + which);
	});
	
	$(class3).click(function(){
		var which = images[Math.floor(Math.random() * images.length)];
		$("#"+pictureid).attr("src", path + which);
	});
});