// 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/corp_services_act.gif", "/images/corp_services_on.gif","/images/careers_act.gif", "/images/careers_on.gif",  "/images/partnerships_act.gif", "/images/partnerships_on.gif", "/images/history_act.gif", "/images/history_on.gif", "/images/people_act.gif", "/images/people_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 = "corp_services";

function midTabMouseOver(elementID)
{
	// turn all the button to the off position
	document.getElementById("corp_servicesButton").src = "/images/corp_services_off.gif";
	document.getElementById("careersButton").src = "/images/careers_off.gif";
	document.getElementById("partnershipsButton").src = "/images/partnerships_off.gif";
	document.getElementById("historyButton").src = "/images/history_off.gif";
	document.getElementById("peopleButton").src = "/images/people_off.gif";
	
	// switch on the elementID to turn on what should be on
	switch (elementID)
	{
		case "corp_servicesButton":
			document.getElementById("corp_servicesButton").src = "/images/corp_services_act.gif";
			break
		case "careersButton":
			document.getElementById("careersButton").src = "/images/careers_act.gif";
			break
		case "partnershipsButton":
			document.getElementById("partnershipsButton").src = "/images/partnerships_act.gif";
			break
		case "historyButton":
			document.getElementById("historyButton").src = "/images/history_act.gif";
			break
		case "peopleButton":
			document.getElementById("peopleButton").src = "/images/people_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("corp_servicesTab").style.visibility = "hidden";
	document.getElementById("careersTab").style.visibility = "hidden";
	document.getElementById("partnershipsTab").style.visibility = "hidden";
	document.getElementById("historyTab").style.visibility = "hidden";
	document.getElementById("peopleTab").style.visibility = "hidden";
	
	// turn all the button to the off position
	document.getElementById("corp_servicesButton").src = "/images/corp_services_off.gif";
	document.getElementById("careersButton").src = "/images/careers_off.gif";
	document.getElementById("partnershipsButton").src = "/images/partnerships_off.gif";
	document.getElementById("historyButton").src = "/images/history_off.gif";
	document.getElementById("peopleButton").src = "/images/people_off.gif";
	
	// switch on the elementID to turn on what should be on
	switch (elementID)
	{
		case "corp_servicesButton":
			document.getElementById("corp_servicesTab").style.visibility = "visible";
			activeTabMiddle = "corp_services";
			break
		case "careersButton":
			document.getElementById("careersTab").style.visibility = "visible";
			activeTabMiddle = "careers";
			break
		case "partnershipsButton":
			document.getElementById("partnershipsTab").style.visibility = "visible";
			activeTabMiddle = "partnerships";
			break
		case "historyButton":
			document.getElementById("historyTab").style.visibility = "visible";
			activeTabMiddle = "history";
			break
		case "peopleButton":
			document.getElementById("peopleTab").style.visibility = "visible";
			activeTabMiddle = "people";
			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("corp_servicesButton").src = "/images/corp_services_act.gif";
	document.getElementById("careersButton").src = "/images/careers_act.gif";
	document.getElementById("partnershipsButton").src = "/images/partnerships_act.gif";
	document.getElementById("historyButton").src = "/images/history_act.gif";
	document.getElementById("peopleButton").src = "/images/people_act.gif";
	
	// turn the active tab back to on
	document.getElementById(activeTabMiddle + "Button").src = "/images/" + activeTabMiddle + "_on.gif";
}