var futureon = new Image();
futureon.src = "homeimages/btn_future_on.gif";
var futureoff = new Image();
futureoff.src = "homeimages/btn_future_off.gif";


var currenton = new Image();
currenton.src = "homeimages/btn_current_on.gif";
var currentoff = new Image();
currentoff.src = "homeimages/btn_current_off.gif";

var workforceon = new Image();
workforceon.src = "homeimages/btn_workforce_on.gif";
var workforceoff = new Image();
workforceoff.src = "homeimages/btn_workforce_off.gif";

;

var communityon = new Image();
communityon.src = "homeimages/btn_community_on.gif";
var communityoff = new Image();
communityoff.src = "homeimages/btn_community_off.gif";


 


function changeTabOne() {
document.getElementById('imgfuture').src=futureon.src;
document.getElementById('imgcurrent').src=currentoff.src;
document.getElementById('imgworkforce').src=workforceoff.src;
document.getElementById('imgcommunity').src=communityoff.src;
}

function changeTabTwo() {
document.getElementById('imgfuture').src=futureoff.src;
document.getElementById('imgcurrent').src=currenton.src;
document.getElementById('imgworkforce').src=workforceoff.src;
document.getElementById('imgcommunity').src=communityoff.src;
}

function changeTabThree() {
document.getElementById('imgfuture').src=futureoff.src;
document.getElementById('imgcurrent').src=currentoff.src;
document.getElementById('imgworkforce').src=workforceon.src;
document.getElementById('imgcommunity').src=communityoff.src;
}

function changeTabFour() {

document.getElementById('imgfuture').src=futureoff.src;
document.getElementById('imgcurrent').src=currentoff.src;
document.getElementById('imgworkforce').src=workforceoff.src;
document.getElementById('imgcommunity').src=communityon.src;
}