// detect Browser
var n4 = (document.layers)? true:false;
var ie = (document.all)? true:false;
var n6 = (document.getElementById)? true:false;

	var screenshots = new Array();
	// load these images for the director page
	function loadImages1() {
		if (document.images) {
			screenshots[0] = new Image(); screenshots[0].src = "images/ehrcd/splash.gif";
			screenshots[1] = new Image(); screenshots[1].src = "images/ehrcd/about.gif";
			screenshots[2] = new Image(); screenshots[2].src = "images/ehrcd/releases.gif";
			screenshots[3] = new Image(); screenshots[3].src = "images/ehrcd/release_page.gif";
			screenshots[4] = new Image(); screenshots[4].src = "images/ehrcd/promo.gif";
			screenshots[5] = new Image(); screenshots[5].src = "images/ehrcd/media.gif";
		}
	}

	// load these images for the moc page
	function loadImages2() {
		if (document.images) {
			screenshots[0] = new Image(); screenshots[0].src = "images/moc/home.gif";
			screenshots[1] = new Image(); screenshots[1].src = "images/moc/era.gif";
			screenshots[2] = new Image(); screenshots[2].src = "images/moc/search.gif";
			screenshots[3] = new Image(); screenshots[3].src = "images/moc/details.gif";
			screenshots[4] = new Image(); screenshots[4].src = "images/moc/enlarge.gif";
			screenshots[5] = new Image(); screenshots[5].src = "images/moc/ecard.gif";
			screenshots[6] = new Image(); screenshots[6].src = "images/moc/kiosk.gif";
		}
	}

	// load these images for the trow page
	function loadImages3() {
		if (document.images) {
			screenshots[0] = new Image(); screenshots[0].src = "images/trow/home.gif";
			screenshots[1] = new Image(); screenshots[1].src = "images/trow/room.gif";
			screenshots[2] = new Image(); screenshots[2].src = "images/trow/animation.gif";
			screenshots[3] = new Image(); screenshots[3].src = "images/trow/objectex1.gif";
			screenshots[4] = new Image(); screenshots[4].src = "images/trow/objectex2.gif";
			screenshots[5] = new Image(); screenshots[5].src = "images/trow/realroom.gif";
		}
	}

	// load these images for the trow page
	function loadImages4() {
		if (document.images) {
			screenshots[0] = new Image(); screenshots[0].src = "images/video/splash.gif";
			screenshots[1] = new Image(); screenshots[1].src = "images/video/vid.gif";
			screenshots[2] = new Image(); screenshots[2].src = "images/video/exit.gif";
		}
	}
	// Show a Layer
	function showScreen(screenNum) {
		var name = "text" + screenNum;
		screenNum--;

		hideAll();
		if (n4) document.layers[name].visibility='show';
		if (ie) document.all[name].style.visibility='visible';
		if (n6) document.getElementById(name).style.visibility='visible';

		eval("document ['screenshot'].src = screenshots[" + screenNum + "].src");
	}

	// hide all layers
	function hideAll() {

		for (i = 1; i <= screenshots.length; i++) {
			hidelay("text" + i);
		}
	}

	// Hide a Layer
	function hidelay(name) {
		if (n4) document.layers[name].visibility='hide';
		if (ie) document.all[name].style.visibility='hidden';
		if (n6) document.getElementById(name).style.visibility='hidden';
	}

	function checkForm() {
		var form = document.forms[0];
		if (form.From.value == "" || form.From.value.indexOf("@") == -1 || form.From.value.indexOf(".") == -1) {
			alert("Please fill in a valid email address"); return false;
		} else if (form.message.value == "") {
			alert("Please type a message for me, thanks!"); return false;
		} else {
			return true;
		}
	}