var pics_ar = new Array();
pics_ar[0] = "images/pic_medium_tutoring_1.jpg";
pics_ar[1] = "images/pic_medium_monument.jpg";
pics_ar[2] = "images/pic_medium_conversation.jpg";
pics_ar[3] = "images/pic_medium_video.jpg";
pics_ar[4] = "images/pic_medium_book.jpg";
pics_ar[5] = "images/pic_medium_staff.jpg";
pics_ar[6] = "images/pic_medium_courtroom.jpg";
pics_ar[7] = "images/pic_medium_laptop.jpg";
pics_ar[8] = "images/pic_medium_tutoring_2.jpg";
pics_ar[9] = "images/pic_medium_staff.jpg";

fn_randompic = function() {
	var random_num = (Math.round((Math.random()*9)+1)) - 1;
	src = pics_ar[random_num];
	
	var domain = document.domain;
	var dir = location.href.substring(location.href.indexOf(domain) + domain.length + 1,location.href.lastIndexOf('.php'));
	
	switch(dir) {
		case "about/the-institute-ipls/our-teaching-staff" :
			src = "images/pic_medium_staff.jpg";
		break;
	}
	return src;
}
src = fn_randompic();
document.getElementById("pic_submenu").src = src;