// JavaScript Document


function navstartup() {
	var navitems;
	if (!document.getElementsByClassName) return;
	navitems = document.getElementsByClassName("navsection_item");
	
	for (i = 0; i < navitems.length; i++) {
			navitems[i].onmouseover = nav_swapimpage;
			navitems[i].onmouseout = nav_swapimpageback;
		}
}
				


function showobject(objname) {
	var shobj = document.getElementById(objname).style;
	shobj.display = "block";
}


function shownav(objname) {
	var objectname;
	var stringsplit;
	var navimg;
	var shobj = document.getElementById(objname).style;
	
	shobj.display = "block";
	objectname = new String(objname);
	stringsplit = objectname.split("_");
	navimg = "navbar_img_" + stringsplit[1];
	document.getElementById(navimg).src = "images/navbar_" + stringsplit[1] +"_over.png";

}


function hidenav(objname) {
	var objectname;
	var stringsplit;
	var navimg;
	var shobj = document.getElementById(objname).style;
	
	shobj.display = "none";
	objectname = new String(objname);
	stringsplit = objectname.split("_");
	navimg = "navbar_img_" + stringsplit[1];
	document.getElementById(navimg).src = "images/navbar_" + stringsplit[1] +".png";

}



function hideobject(objname) {
		var hidobj = document.getElementById(objname).style;
		hidobj.display = "none";
		
}


function swapimage(image,replacement) {
	document.getElementById(image).src = "images/" + replacement + ".png";
}


function nav_swapimpage(e) {
	var navsection_container;
	var sectionid;
	var navitem;
	var sectionstring;
	var navimage;
	
	if (!e) {var e = window.event;}
	
	if (e.target) {navsection_container = e.target;}
	else if (e.srcElement) {navsection_container = e.srcElement;}
	
	sectionelement = navsection_container.parentNode.parentNode.parentNode.parentNode;
	sectionid = navsection_container.parentNode.parentNode.parentNode.parentNode.id;
	
	navitem = new String(navsection_container.parentNode.parentNode.id);
	sectionstring = navitem.split("_");
	navimage = "navsection_picture_" + sectionstring[0];
	
	document.getElementById(navimage).style.background = "url(images/navimage_" + navitem +".jpg) no-repeat";
}

function nav_swapimpageback(e) {
	var navsection_container;
	var sectionid;
	var navitem;
	var sectionstring;
	var navimage;
	
	if (!e) {var e = window.event;}
	
	if (e.target) {navsection_container = e.target;}
	else if (e.srcElement) {navsection_container = e.srcElement;}
	
	sectionelement = navsection_container.parentNode.parentNode.parentNode.parentNode;
	sectionid = navsection_container.parentNode.parentNode.parentNode.parentNode.id;
	
	navitem = new String(navsection_container.parentNode.parentNode.id);
	sectionstring = navitem.split("_");
	navimage = "navsection_picture_" + sectionstring[0];
	
	document.getElementById(navimage).style.background = "url(images/navimage_" + sectionstring[0] +".jpg) no-repeat";
}