Load content on-demand with check

In this demo form attached to popup not inited on startup
it will inited when popup will shown first time, i.e. on demand
init way is a simple check if form object exist or not
</> Source
<!DOCTYPE html>
<html>
<head>
	<title>Load content on-demand with check</title>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
	<meta http-equiv="X-UA-Compatible" content="IE=edge"/>
	<link rel="stylesheet" type="text/css" href="../../../codebase/fonts/font_roboto/roboto.css"/>
	<link rel="stylesheet" type="text/css" href="../../../codebase/dhtmlx.css"/>
	<script src="../../../codebase/dhtmlx.js"></script>
	<style>
		#myToolbar {
			margin: 10px;
		}
		#eLog {
			position: relative;
			width: auto;
			font-family: Roboto, Arial, Helvetica;
			font-size: 14px;
			color: #404040;
			margin: 170px 10px 10px 10px;
			padding: 2px;
		}
	</style>
	<script>

		var myToolbar;
		var myPop;
		var myForm;
		var eLog;

		function doOnLoad() {

			myToolbar = new dhtmlXToolbarObject({
				parent: "myToolbar",
				icons_path: "../common/imgs/",
				xml: "../common/toolbar.xml",
				onload: function() {

					myToolbar.setItemText("workbut", "Login Form");

					myPop = new dhtmlXPopup({ toolbar: myToolbar, id: "workbut" });

					myPop.attachEvent("onShow", function(){

						// check if myForm is not inited - call init once when popup shown 1st time
						// another way to check is if (myForm instanceof dhtmlXForm)
						if (!myForm) {
							myForm = myPop.attachForm([
								{type: "settings", position: "label-left", labelWidth: 110, inputWidth: 130},
								{type: "input", label: "Email Address", name: "email"},
								{type: "password", label: "Password", name: "pwd"},
								{type: "checkbox", label: "Remember me", checked: 1},
								{type: "button", value: "Proceed", offsetLeft: 149}
							]);
							myForm.attachEvent("onButtonClick", function(){
								myPop.hide();
							});
						}

						myForm.setFocusOnFirstActive();
					});
				}
			});

		}

	</script>
</head>
<body onload="doOnLoad()">
	<div id="myToolbar"></div>
	<div id="eLog">
		In this demo form attached to popup not inited on startup<br>
		it will inited when popup will shown first time, i.e. on demand<br>
		init way is a simple check if form object exist or not
	</div>
</body>
</html>

Documentation

Check documentation to learn how to use the components and easily implement them in your applications.