function popitup(url)
{
        newwindow=window.open(url,'name','height=250,width=380, scrollbar=no');
        if (window.focus) {newwindow.focus()}
        return false;
}



var origWidth, origHeight;
if (document.layers) {
	origWidth = window.innerWidth; origHeight = window.innerHeight;
	window.onresize = function() { if (window.innerWidth != origWidth || window.innerHeight != origHeight) history.go(0); }
}

var cur_lyr;	// holds id of currently visible layer
var cur_lyr2;   // holds id of other currently visible layer
// this is modified to handle 2 layers, since we need to show one for the image and one for the description
function swapLayers(id) {
  if (cur_lyr) hideLayer(cur_lyr);
  if (cur_lyr2) hideLayer(cur_lyr2);
  showLayer(id);
  showLayer(id + "b");
  cur_lyr = id;
  cur_lyr2 = id + "b";
}

function showLayer(id) {
  var lyr = getElemRefs(id);
  if (lyr && lyr.css) lyr.css.visibility = "visible";
}

function hideLayer(id) {
  var lyr = getElemRefs(id);
  if (lyr && lyr.css) lyr.css.visibility = "hidden";
}

function getElemRefs(id) {
	var el = (document.getElementById)? document.getElementById(id): (document.all)? document.all[id]: (document.layers)? document.layers[id]: null;
	if (el) el.css = (el.style)? el.style: el;
	return el;
}

function resizeBlankDiv() {
// resize blank placeholder div so IE 5
// on mac will get all clicks in window
if ((navigator.appVersion.indexOf('MSIE 5') != -1)
  && (navigator.platform.indexOf('Mac') != -1)
  && getStyleObject('blankDiv')) {
    getStyleObject('blankDiv').width =
      document.body.clientWidth - 20;
    getStyleObject('blankDiv').height = 
      document.body.clientHeight - 20;
  }
}


var elem = 0

function StringArray (n) {
  this.length = n;
  for (var i =1; i <= n; i++) {
    this[i] = ' '

  }
}

image = new StringArray(5)

image[0] = 'images/links/1.gif'
image[1] = 'images/links/2.gif'
image[2] = 'images/links/3.gif'
image[3] = 'images/links/4.gif'
image[4] = 'images/links/5.gif'

function getBookMarkImgs() {

  for (var j = 1; j < 7; j++) {
    elem = Math.floor(Math.round(4 * Math.random()))
	document.write("<img src='" +image[elem]+ "'><br>")  
	}
	
	  
}