robert1= new Image(); 
robert1.src="images/robert_1.jpg";

robert2= new Image(); 
robert2.src="images/robert_2.jpg";

robert3= new Image(); 
robert3.src="images/robert_3.jpg";

simone1= new Image(); 
simone1.src="images/simone_1.jpg";

simone2= new Image(); 
simone2.src="images/simone_2.jpg";

simone3= new Image(); 
simone3.src="images/simone_3.jpg";

howard1= new Image(); 
howard1.src="images/howard_1.jpg";

howard2= new Image(); 
howard2.src="images/howard_2.jpg";

howard3= new Image(); 
howard3.src="images/howard_3.jpg";

cynthia1= new Image(); 
cynthia1.src="images/cynthia_1.jpg";

cynthia2= new Image(); 
cynthia2.src="images/cynthia_2.jpg";

cynthia3= new Image(); 
cynthia3.src="images/cynthia_3.jpg";

jake1= new Image(); 
jake1.src="images/jake_1.jpg";

jake2= new Image(); 
jake2.src="images/jake_2.jpg";

jake3= new Image(); 
jake3.src="images/jake_3.jpg";



function robertRoll(){
show('layerRobert');
hide('layerDefault');hide('layerSimone');hide('layerHoward');hide('layerCynthia');hide('layerJake');
document.getElementById('robertImg').src=robert2.src;
document.getElementById('simoneImg').src=simone3.src;
document.getElementById('howardImg').src=howard3.src;
document.getElementById('cynthiaImg').src=cynthia3.src;
document.getElementById('jakeImg').src=jake3.src;
}

function simoneRoll(){
show('layerSimone');
hide('layerDefault');hide('layerRobert');hide('layerHoward');hide('layerCynthia');hide('layerJake');
document.getElementById('simoneImg').src=simone2.src;
document.getElementById('robertImg').src=robert3.src;
document.getElementById('howardImg').src=howard3.src;
document.getElementById('cynthiaImg').src=cynthia3.src;
document.getElementById('jakeImg').src=jake3.src;
}

function howardRoll(){
show('layerHoward');
hide('layerDefault');hide('layerSimone');hide('layerRobert');hide('layerCynthia');hide('layerJake');
document.getElementById('howardImg').src=howard2.src;
document.getElementById('robertImg').src=robert3.src;
document.getElementById('simoneImg').src=simone3.src;
document.getElementById('cynthiaImg').src=cynthia3.src;
document.getElementById('jakeImg').src=jake3.src;
}

function cynthiaRoll(){
show('layerCynthia');
hide('layerDefault');hide('layerSimone');hide('layerHoward');hide('layerRobert');hide('layerJake');
document.getElementById('cynthiaImg').src=cynthia2.src;
document.getElementById('robertImg').src=robert3.src;
document.getElementById('simoneImg').src=simone3.src;
document.getElementById('howardImg').src=howard3.src;
document.getElementById('jakeImg').src=jake3.src;
}

function jakeRoll(){
show('layerJake');
hide('layerDefault');hide('layerSimone');hide('layerHoward');hide('layerCynthia');hide('layerRobert');
document.getElementById('jakeImg').src=jake2.src;
document.getElementById('robertImg').src=robert3.src;
document.getElementById('simoneImg').src=simone3.src;
document.getElementById('howardImg').src=howard3.src;
document.getElementById('cynthiaImg').src=cynthia3.src;
}



function show(id){
document.getElementById(id).style.visibility="visible";
}
function hide(id){
document.getElementById(id).style.visibility="hidden";
}