function openWindow(url, ref, w, h) {
	popup = window.open("",ref,"width=" + w + ",height=" + h + ",screenX=150,screenY=150,top=10,left=10,toolbar=no,directories=no,status=yes,menubar=no,scrollbars=yes,resizable=yes");
	popup.location.href = url;//hexequiv(url);
	popup.focus();
	if (!popup.opener) popup.opener = self;
	}

function donothing() {;}


function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		Tangoweb1a_04_over = newImage("images/Tangoweb1a_04-over.gif");
		Tangoweb1a_06_over = newImage("images/Tangoweb1a_06-over.gif");
		Tangoweb1a_07_over = newImage("images/Tangoweb1a_07-over.gif");
		Tangoweb1a_08_over = newImage("images/Tangoweb1a_08-over.gif");
		Tangoweb1a_09_over = newImage("images/Tangoweb1a_09-over.gif");
		preloadFlag = true;
	}
}

function hexequiv(raw_url) {
  var equiv="";
  for (var t=1 ; t <=raw_url.length ; t++) {
    if (raw_url.substring(t-1,t)=='&') {
      equiv+='%26';
    } else if (raw_url.substring(t-1,t)==' ') {
      equiv+='+';
    } else {
      equiv+=raw_url.substring(t-1,t);
    } 
  }
  return equiv;
}

function ShowHide(oTarget){
		var srcElement = window.event.srcElement;
		if (oTarget.style.display == "none")
			{ 
			oTarget.style.display = "block";
			srcElement.value = "Hide"
			}
		else
		{ 
		oTarget.style.display = "none";
		srcElement.value = "Show"
		}	
	}
	
function ScrollIt(){
	Main.scrollTop = document.Form1.PageY.value;
}

function setcoords(){
	var myPageY;
	if (document.all){
		myPageY = Main.scrollTop;
		}
	else{
		myPageY = window.pageYOffset;
	}
	document.Form1.PageY.value = myPageY;
}