// Line colors start
function hasClass(obj) {
     var result = false;
     if (obj.getAttributeNode("class") != null) {
         result = obj.getAttributeNode("class").value;
     }
     return result;
  }   

function stripe(id) {
    var even = false;
  
    // if arguments are provided to specify the colours
    // of the even & odd rows, then use the them;
    // otherwise use the following defaults:
    var evenColor = arguments[1] ? arguments[1] : "#fff";
    var oddColor = arguments[2] ? arguments[2] : "#eee";
    var table = document.getElementById(id);
    if (! table) { return; }
    var tbodies = table.getElementsByTagName("tbody");
     for (var h = 0; h < tbodies.length; h++) {
      var trs = tbodies[h].getElementsByTagName("tr");
       for (var i = 0; i < trs.length; i++) {
	    if (!hasClass(trs[i]) && ! trs[i].style.backgroundColor) {
          var tds = trs[i].getElementsByTagName("td");
           for (var j = 0; j < tds.length; j++) {
            var mytd = tds[j];
	        if (! hasClass(mytd) && ! mytd.style.backgroundColor) {
		      mytd.style.backgroundColor = even ? evenColor : oddColor;
            }
          }
        }
        even =  ! even;
      }
    }
  }
// Line colors end