// 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/research_act.gif", "/images/research_on.gif","/images/strategy_act.gif", "/images/strategy_on.gif", "/images/optimize_act.gif", "/images/optimize_on.gif", "/images/analytics_act.gif", "/images/analytics_on.gif", "/images/opartner_act.gif", "/images/opartner_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 = "research";

function midTabMouseOver(elementID)
{
	// turn all the button to the off position
	document.getElementById("researchButton").src = "/images/research_off.gif";
	document.getElementById("strategyButton").src = "/images/strategy_off.gif";
	document.getElementById("optimizeButton").src = "/images/optimize_off.gif";
	document.getElementById("analyticsButton").src = "/images/analytics_off.gif";
	document.getElementById("opartnerButton").src = "/images/opartner_off.gif";
		
	// switch on the elementID to turn on what should be on
	switch (elementID)
	{
		case "researchButton":
			document.getElementById("researchButton").src = "/images/research_act.gif";
			break
		case "strategyButton":
			document.getElementById("strategyButton").src = "/images/strategy_act.gif";
			break
		case "optimizeButton":
			document.getElementById("optimizeButton").src = "/images/optimize_act.gif";
			break
		case "analyticsButton":
			document.getElementById("analyticsButton").src = "/images/analytics_act.gif";
			break
		case "opartnerButton":
			document.getElementById("opartnerButton").src = "/images/opartner_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("researchTab").style.visibility = "hidden";
	document.getElementById("strategyTab").style.visibility = "hidden";
	document.getElementById("optimizeTab").style.visibility = "hidden";
	document.getElementById("analyticsTab").style.visibility = "hidden";
	document.getElementById("opartnerTab").style.visibility = "hidden";
	
	// turn all the button to the off position
	document.getElementById("researchButton").src = "/images/research_off.gif";
	document.getElementById("strategyButton").src = "/images/strategy_off.gif";
	document.getElementById("optimizeButton").src = "/images/optimize_off.gif";
	document.getElementById("analyticsButton").src = "/images/analytics_off.gif";
	document.getElementById("opartnerButton").src = "/images/opartner_off.gif";
	
	// switch on the elementID to turn on what should be on
	switch (elementID)
	{
		case "researchButton":
			document.getElementById("researchTab").style.visibility = "visible";
			activeTabMiddle = "research";
			break
		case "strategyButton":
			document.getElementById("strategyTab").style.visibility = "visible";
			activeTabMiddle = "strategy";
			break
		case "optimizeButton":
			document.getElementById("optimizeTab").style.visibility = "visible";
			activeTabMiddle = "optimize";
			break
		case "analyticsButton":
			document.getElementById("analyticsTab").style.visibility = "visible";
			activeTabMiddle = "analytics";
			break
		case "opartnerButton":
			document.getElementById("opartnerTab").style.visibility = "visible";
			activeTabMiddle = "opartner";
			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("researchButton").src = "/images/research_act.gif";
	document.getElementById("strategyButton").src = "/images/strategy_act.gif";
	document.getElementById("optimizeButton").src = "/images/optimize_act.gif";
	document.getElementById("analyticsButton").src = "/images/analytics_act.gif";
	document.getElementById("opartnerButton").src = "/images/opartner_act.gif";
	
	// turn the active tab back to on
	document.getElementById(activeTabMiddle + "Button").src = "/images/" + activeTabMiddle + "_on.gif";
}