// JavaScript Document

function imgHover(obj) {
	var imgName = obj.src.split("/");
	imgName = imgName[imgName.length-1];
	
	if (imgName.split("_").length != 2) {
		obj.src = "images/" + imgName.split(".")[0] + "_over.gif";	
	
		obj.onmouseout = function() {
			var imgName = obj.src.split("/");
			imgName = imgName[imgName.length-1];
			
			obj.src = "images/" + imgName.split("_")[0] + ".gif";	
		}
	}
}

var numTestimonials = 5;
function showRandTestimionial() {
	do {
		var randNum = randomNumber(numTestimonials + 1);	
	} while (randNum == 0);
	
	
	for (var i = 1; i <= numTestimonials; i++) {
		if (i == randNum) {
			document.getElementById("testimonial" + i).style.display = "block";
		} else {
			document.getElementById("testimonial" + i).style.display = "none";
		}
	}
}

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