// JavaScript Document

function imgHover(obj) {
	var imgName = obj.src.split("/")[obj.src.split("/").length-1];
	
	if (imgName.split("_over").length == 1) {
		var imgNum = imgName.split(".")[0];
		obj.src = "images/" + imgNum + "_over.gif";
		
		obj.onmouseout = function() {
			obj.src = "images/" + imgNum + ".gif";
		}
	}
}

function showRandTestimionial() {	
	if (document.getElementById("testimonials")) {
		var testimonials = document.getElementById("testimonials").getElementsByTagName("div");
		var numTestimonials = testimonials.length;
		var randNum = randomNumber(numTestimonials);	
	
		for (var i = 0; i < numTestimonials; i++) {
			if (i == randNum) {
				testimonials[i].style.display = "block";
			} else {
				testimonials[i].style.display = "none";
			}
		}
	}
}

function randomNumber(limit){
	return Math.floor(Math.random()*limit);
}