function swap (imgName,swapTo) {
	document.images[imgName].src = swapTo;
	}
	
function loadImg() {
  if (document.images) {
    var imgFiles = loadImg.arguments;
    if (document.preloadArray==null) document.preloadArray = new Array();
    var i = document.preloadArray.length;
    with (document) for (var j=0; j<imgFiles.length; j++) {
      preloadArray[i] = new Image;
      preloadArray[i].src = imgFiles[j];
  } }
}

function rollover (imgName) {
	s = document.images[imgName];
	if (s.src.indexOf("_over") > 0) {
		s.src = s.src.slice(0,s.src.indexOf("_over")) + s.src.substr(s.src.lastIndexOf("."));
	} else {
		s.src = s.src.slice(0,s.src.lastIndexOf(".")) + "_over" + s.src.substr(s.src.lastIndexOf("."));
	}
} 

function init() {
// size columns
	document.getElementById("content").style.minHeight = (document.getElementById("outer-frame").offsetHeight - 90) + "px";
	
	loadImg('nav/gblogo_over.gif');
}

function toggle(divname) {
	d = document.getElementById(divname+"_info");
	if (d.style.display == "block") {
		d.style.display = "none";
	} else {
		d.style.display = "block";
	}
	d = document.getElementById(divname);
	if (d.innerHTML.indexOf("click to open") > -1) {
		temp = d.innerHTML.replace(/click to open/,"click to close");
	} else {
		temp = d.innerHTML.replace(/click to close/,"click to open");
	}
	d.innerHTML = temp;
	//init();	// resize columns
}