// middle_tabs.js
// 11-28-07
// Coded by SGB as a tab utility

//var focusColor = "#27256c";
//var blurColor = "#716FB9";

// preload the images
var myImages = new Array ("/images/first_act.gif", "/images/first_on.gif","/images/capabilities_act.gif", "/images/capabilities_on.gif", "/images/services_act.gif", "/images/services_on.gif", "/images/projects_act.gif", "/images/projects_on.gif", "/images/facility_act.gif", "/images/facility_on.gif");
 
var myPreload = new Array ();
 
for (var i = 0; i < myImages.length; i++ )
{

myPreload[ i ]= new Image();
myPreload[ i ].src = myImages[ i ];

}

var activeTabMiddle = "first";

function midTabMouseOver(elementID)
{
	// turn all the button to the off position
	document.getElementById("firstButton").src = "/images/first_off.gif";
	document.getElementById("capabilitiesButton").src = "/images/capabilities_off.gif";
	document.getElementById("servicesButton").src = "/images/services_off.gif";
	document.getElementById("projectsButton").src = "/images/projects_off.gif";
	document.getElementById("facilityButton").src = "/images/facility_off.gif";
		
	// switch on the elementID to turn on what should be on
	switch (elementID)
	{
		case "firstButton":
			document.getElementById("firstButton").src = "/images/first_act.gif";
			break
		case "capabilitiesButton":
			document.getElementById("capabilitiesButton").src = "/images/capabilities_act.gif";
			break
		case "servicesButton":
			document.getElementById("servicesButton").src = "/images/services_act.gif";
			break
		case "projectsButton":
			document.getElementById("projectsButton").src = "/images/projects_act.gif";
			break
		case "facilityButton":
			document.getElementById("facilityButton").src = "/images/facility_act.gif";
			break
		default:
			alert("The tab system does not recognize the following element: " + elementID);
	}
	
	// turn the active tab back to on
	document.getElementById(activeTabMiddle + "Button").src = "/images/" + activeTabMiddle + "_on.gif";
}

// Changes the style of current element to focus style
function applyFocus(elementID)
{
	var element = document.getElementById(elementID);
	
	// turn all the tabs invisible
	document.getElementById("firstTab").style.visibility = "hidden";
	document.getElementById("capabilitiesTab").style.visibility = "hidden";
	document.getElementById("servicesTab").style.visibility = "hidden";
	document.getElementById("projectsTab").style.visibility = "hidden";
	document.getElementById("facilityTab").style.visibility = "hidden";
	
	// turn all the button to the off position
	document.getElementById("firstButton").src = "/images/first_off.gif";
	document.getElementById("capabilitiesButton").src = "/images/capabilities_off.gif";
	document.getElementById("servicesButton").src = "/images/services_off.gif";
	document.getElementById("projectsButton").src = "/images/projects_off.gif";
	document.getElementById("facilityButton").src = "/images/facility_off.gif";
	
	// switch on the elementID to turn on what should be on
	switch (elementID)
	{
		case "firstButton":
			document.getElementById("firstTab").style.visibility = "visible";
			activeTabMiddle = "first";
			break
		case "capabilitiesButton":
			document.getElementById("capabilitiesTab").style.visibility = "visible";
			activeTabMiddle = "capabilities";
			break
		case "servicesButton":
			document.getElementById("servicesTab").style.visibility = "visible";
			activeTabMiddle = "services";
			break
		case "projectsButton":
			document.getElementById("projectsTab").style.visibility = "visible";
			activeTabMiddle = "projects";
			break
		case "facilityButton":
			document.getElementById("facilityTab").style.visibility = "visible";
			activeTabMiddle = "facility";
			break
		default:
			alert("The tab system does not recognize the following element: " + elementID);
	}
	
	// turn the active tab back to on
	document.getElementById(activeTabMiddle + "Button").src = "/images/" + activeTabMiddle + "_on.gif";
}

// Changes the style of current element to focus style
function blurFocusMid()
{
	// turn all the button to the off position
	document.getElementById("firstButton").src = "/images/first_act.gif";
	document.getElementById("capabilitiesButton").src = "/images/capabilities_act.gif";
	document.getElementById("servicesButton").src = "/images/services_act.gif";
	document.getElementById("projectsButton").src = "/images/projects_act.gif";
	document.getElementById("facilityButton").src = "/images/facility_act.gif";
	
	// turn the active tab back to on
	document.getElementById(activeTabMiddle + "Button").src = "/images/" + activeTabMiddle + "_on.gif";
}