var preloadFlag = "";
function tmPreloadImages() {
	if (document.images) {
		hover_tab_about = new Image();
		hover_tab_about.src = "imgs/tab_about_hover.gif";
		hover_tab_vision = new Image();
		hover_tab_vision.src = "imgs/tab_vision_hover.gif";
		hover_tab_events = new Image();
		hover_tab_events.src = "imgs/tab_events_hover.gif";
		hover_tab_policy = new Image();
		hover_tab_policy.src = "imgs/tab_policy_hover.gif";
		hover_tab_contact = new Image();
		hover_tab_contact.src = "imgs/tab_contact_hover.gif";
		hover_tab_gallery = new Image();
		hover_tab_gallery.src = "imgs/tab_gallery_hover.gif";
		preloadFlag = true;
		tmManageTabs();
	}
}

function tmChangeImages() {
	if (document[tmChangeImages.arguments[0]].name == gCurrTab) { return; }
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<tmChangeImages.arguments.length; i+=2) {
			document[tmChangeImages.arguments[i]].src = tmChangeImages.arguments[i+1];
		}
	}
}

var gCurrTab = "";
function tmManageTabs() {
	if (document.title != "Welcome to Human Agenda") {
		gCurrTab = location.href;
		temp = "";
		tArray = gCurrTab.split("/");
		for (var i=0; i<(tArray.length-1); i++) {
			temp = temp + (tArray [i] + '/');
		}
		gCurrTab = temp.slice(0,temp.length-1);
		S = gCurrTab.lastIndexOf("/")+1;
		E = gCurrTab.length;
		gCurrTab = "tab_" + (gCurrTab.slice(S,E));
		
		document.images[gCurrTab].src = "../imgs/" + gCurrTab + "_pressed.gif"
	}
}