function checkReg() {
  var cb2 = document.getElementById("wmi_send_email");
  var valcb2 = document.getElementById("val_contact");
  valcb2.style.display = "none";
  if (cb2.checked) {
    return true;
  } else {
    valcb2.style.display = "block";
    return false;
  }
}

function toggleField(obj,val)
{
    if(obj.value == val)
    {
	    obj.value = "";
    }
    else if(obj.value == "")
    {
	    obj.value = val;
    }
}
function swapImage(obj,val)
{
    if(document.images){
        obj.src = val;
    }
}