function openwin (daURL)
{
	var js_wid = 800;
	var js_hgt = 600;
	window.open(daURL, "client_win","toolbar=no,location=no,status=yes,directories=no,menubar=no,scrollbars=yes,resizable=yes,maximize=yes,width=" + js_wid + ",height=" + js_hgt);
} 


var ns				=	(window.navigator.appName.toLowerCase() == "netscape");
var ie				=	(window.navigator.appName.toLowerCase() == "microsoft internet explorer");
var agt				=	navigator.userAgent.toLowerCase();
var is_major	=	parseInt(navigator.appVersion);
var is_ie5		=	(ie && (is_major == 4) && (agt.indexOf("msie 5")!=-1) );
var is_ns6up	=   (ns && (is_major >= 5));


function clearAll(theForm) {
	for (i=0;i<=theForm.length;i++) {
		if (theForm[i].type != "hidden") {
			theForm[i].value = ""
		}
	}
}

function ignoreError(message, url, line) {
  return true;
}

lastLayerAccessed = -1;
lasttimeoutid = '';
dis_time = 5000; 

//window.onerror = ignoreError;

function openLayer(x) {

  closeLayers();

  lastLayerAccessed = x;

  if(ns) {
  
    navigationLayer  = "layer" + x

		if(is_ns6up) {
	    showNavLayer  = document.getElementById(navigationLayer)
    	showNavLayer.style.visibility  = "visible"
		} else {
	    showNavLayer  = document[navigationLayer]
    	showNavLayer.visibility  = "show"
    }
  }

  if(ie){

    navigationLayer  = "layer" + x

    showNavLayer  = document.all[navigationLayer]
    showNavLayer.style.visibility  = "visible"
    

  }

  clearTimeout(lasttimeoutid);		
  lasttimeoutid = setTimeout("closeLayers();",dis_time);

}


function closeLayers() {

  if (lastLayerAccessed != -1) {
    navigationLayer  = "layer" + lastLayerAccessed
    if(ie){ 
      document.all[navigationLayer].style.visibility = "hidden"
    }
    if(ns){
			if(is_ns6up) {
				document.getElementById(navigationLayer).style.visibility = "hidden"
			} else {
	      document[navigationLayer].visibility = "hide"
  	  }
    }
  }

}


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) {
		tanrtestRasterised_03_over = newImage("/images/tanrtestRasterised_03-over.gif");
		tanrtestRasterised_04_over = newImage("/images/tanrtestRasterised_04-over.gif");
		tanrtestRasterised_05_over = newImage("/images/tanrtestRasterised_05-over.gif");
		tanrtestRasterised_06_over = newImage("/images/tanrtestRasterised_06-over.gif");
		tanrtestRasterised_07_over = newImage("/images/tanrtestRasterised_07-over.gif");
		tanrtestRasterised_08_over = newImage("/images/tanrtestRasterised_08-over.gif");
		preloadFlag = true;
	}
}