var okOn, okOff;

okOn=new Image();
okOn.src="images/ok_a.gif";

okOff=new Image();
okOff.src="images/ok.gif";

function infoPopup(infoId) {
  //window.open("terminfo.asp?id=" + infoId,"infoPopup","left=100,top=100,width=530,height=600,scrollbars=yes,resizable=yes").focus();
  document.location="index.asp?id=" + infoId;
}

function openPage(pageAddress) {
  window.open(pageAddress,"pagePopup","left=100,top=100,width=500,height=600,scrollbars=yes,resizable=yes").focus();
}

function buttonOn() {
  document.getElementById("okButton").src=okOn.src;
}

function buttonOff() {
  document.getElementById("okButton").src=okOff.src;
}