function genHex(){
colors = new Array(2)
colors[0]="#878787";
colors[1]="#555555";
colors[2]="#696969";
color=colors[Math.round(Math.random()*2)];
document.getElementById('hexc').style.backgroundColor=color;
document.getElementById('hexc2').style.backgroundColor=color;
document.getElementById('hexc3').style.backgroundColor=color;
}