/* Javascript Functions Used By All Pages */


/* includeHTML() is Attributed to www.w3schools.com */

function includeHTML() {	
	var z, i, elmnt, file, xhttp;
	z = document.getElementsByTagName("*");
	for (i = 0; i < z.length; i++) {
		elmnt = z[i];
		file = elmnt.getAttribute("include-html");
		if (file) {
		  xhttp = new XMLHttpRequest();
		  xhttp.onreadystatechange = function() {
			if (this.readyState == 4) {
			  if (this.status == 200) {elmnt.innerHTML = this.responseText;}
			  if (this.status == 404) {elmnt.innerHTML = "Page not found.";}
			  elmnt.removeAttribute("include-html");
			  includeHTML();
			}
		  }      
		  xhttp.open("GET", file, true);
		  xhttp.send();
		  return;
		}
	}
};