// JavaScript Document
myDYNMax = 3;
myDYNNum = Math.floor(Math.random()*myDYNMax);	
function swapDYN(){
DYN = "DNY"+myDYNNum;
document.getElementById(DYN).style.display = "none";
myDYNNum++;
if(myDYNNum>=myDYNMax){myDYNNum=0}
DYN = "DNY"+myDYNNum;
document.getElementById(DYN).style.display = "inline";
}