/* NAVIGATION SCRIPT */
/* collapsing text */

function expand(thistag) {
  styleObj = document.getElementById(thistag).style;
  if (styleObj.display=='none') {
    styleObj.display = '';
  } else {
    styleObj.display = 'none';
  }
}

var flip = "Start"; // global to save

function toggle() {
  if (flip == "Start") {
    flip = "Stop";
    //insert start code here
    copy ='<input name="b" type="button" value="Stop" ';
    copy+='class="zone" onClick="toggle();">';
    document.getElementById('zone').innerHTML=copy;
  } else {
    flip = "Start";
    //insert stop code here
    copy ='<input name="b" type="button" value="Start" ';
    copy+='class="zone" onClick="toggle();">';
    document.getElementById('zone').innerHTML=copy;
  }
}

function collapse(thistag) {
  styleObj = document.getElementById(thistag).style;
  styleObj.display = 'none';
}