var loaded = false;
var initState = false;
var hideInt = 200;
var menuItems = 7;

var ns4 = (document.layers);
var ie4 = (document.all);
var ns6 = (document.getElementById);
var ie5mac = ((window.navigator.userAgent.indexOf('MSIE 5.2') >= 0) && (window.navigator.userAgent.indexOf('Mac') >= 0))

var xPos;

function setVis(layerID, boolval) {
	if (ie4) { if(document.all[layerID]) document.all[layerID].style.visibility = boolval ? 'visible' : 'hidden'; }
	else if (ns4) { if(document.layers[layerID]) document.layers[layerID].visibility = boolval ? 'show' : 'hide'; }
	else if (ns6) { if(document.getElementById(layerID)) document.getElementById(layerID).style.visibility = boolval ? 'visible' : 'hidden'; };
}

function setLeft(layerID, val) {
	if (ie4) { if(document.all[layerID]) document.all[layerID].style.left = val; }
	else if (ns4) { if(document.layers[layerID]) document.layers[layerID].left = val; }
	else if (ns6) { if(document.getElementById(layerID)) document.getElementById(layerID).style.left = val };
}

function getWidth() {
	if (document.documentElement && document.documentElement.clientWidth) return document.documentElement.clientWidth;
	else if (document.body && document.body.clientWidth) return document.body.clientWidth;
}

function detectSize() {
	if(loaded && ie5mac) location.replace(location.href);
	
	var aw = 0;
	aw = getWidth();
//	alert(aw);
	xPos = 0;
	if(aw > 770) xPos = Math.round((aw - 770) / 2);

	setLeft("layer1", xPos + 60);
	setLeft("layer2", xPos + 133);
	setLeft("layer3", xPos + 261);
	setLeft("layer4", xPos + 319);
	setLeft("layer5", xPos + 384);
	setLeft("layer6", xPos + 453);
	setLeft("layer7", xPos + 566);
	loaded = true;
}

function hideLayers() {
	for (var i = 1; i <= menuItems; i++) setVis("layer" + i, false);
}
	
function showMenu(menuID) {
	if (initState) clearTimeout(TID)
	else initState = true;
  
  	hideLayers();
	setVis("layer" + menuID, true);	
}
		
function closeMe(obj) {
	timeoutString = "hideLayers()"
	if (ns6) TID = ns6 ? window.setTimeout(timeoutString, hideInt) : setTimeout(timeoutString, hideInt);
}

var popupwin = null;
var ary = new Array();
var first = true;
var previous_url;

var screenHeight = Math.round(screen.availHeight * 0.90)	
function windowOpen(url,openHeight) {		
	if (openHeight > screenHeight) {
		openHeight = screenHeight;
	}
	var winString = "height=" + openHeight + ",width=405,scrollbars=0,status=0,top=20,left=100";
	if (first) {
		popupwin = window.open( url, "2uk", winString);
		popupwin.focus();
		first = false;
	} else {
		if ( popupwin != null && !popupwin.closed && previous_url == url ) { popupwin.focus(); }
		else {
			if (popupwin.closed) {
				popupwin = window.open( url, "2uk", winString);
				popupwin.focus();
			} else {
				popupwin.location = url;
				popupwin.focus();
			}
		}	
	}
	previous_url = url ;
}
function refreshMenu() {
			
	for (var i = 1; i < menuItems; i++) {
		if (ie4) {
			eval("layer" + i + ".style.visibility = 'hidden'");
		} else if (ns4) {
			eval("document.layers['layer" + i + "'].visibility = 'hide'");
		} else if (ns6) {
			eval("document.getElementById('layer" + i + "').style.visibility = 'hidden'");
		}
	}
}
	
function showMenu(menuID) {
		
	if (initState) {
		clearTimeout(TID)
	} else {
 	initState = true;
  }
  
  refreshMenu();
			
	for (var i = 1; i < menuItems; i++) {
		if (menuID == "" + i) {
			if (ie4) {
				eval("layer" + menuID + ".style.visibility = 'visible'");
			} else if (ns4) {
				eval("document.layers['layer" + menuID + "'].visibility = 'show'");						
			} else if (ns6) {
				eval("document.getElementById('layer" + menuID + "').style.visibility = 'visible'");
			}
		} else {
			if (ie4) {
				eval("layer" + i + ".style.visibility = 'hidden'");
			} else if (ns4) {
				eval("document.layers['layer" + i + "'].visibility = 'hide'");
			} else if (ns6) {
				eval("document.getElementById('layer" + i + "').style.visibility = 'hidden'");
			}
		}							
	}
}

		
function closeMe(obj){
	timeoutString = "refreshMenu()"

  if (ie4) {TID = setTimeout(timeoutString,hideInt);}
  else if (ns4) {TID = setTimeout(timeoutString,hideInt);}
  else if (ns6) {TID =window.setTimeout(timeoutString,hideInt);}
	 
}

// redirects the browser
function peopleRedirect() {
		var peopleID;
		peopleID = eval('document.peopleForm.fPeople.value');	
		if (peopleID != 0) {
			url = "peopleDetail.asp?id=" + peopleID ;
			location.href = url;
		}
}
	
// redirects the browser
function editionRedirect() {
		var editionID;
		editionID = eval('document.editionForm.fEdition.value');	
		if (editionID != 0) {
			url = "newsletter.asp?id=" + editionID ;
			location.href = url;
		}
		if (editionID == 0) {
			location.href = "newsletterAll.asp?view=1";
		}
}

var popupwin = null;
var ary = new Array();
var first = true;
var previous_url;

var screenHeight = Math.round(screen.availHeight * 0.90)	
function windowOpen(url,openHeight) {		
	if (openHeight > screenHeight) {
		openHeight = screenHeight;
	}
	var winString = "height=" + openHeight + ",width=480,scrollbars=1,status=0,top=20,left=100";
	if (first) {
		popupwin = window.open( url, "holmanWebb", winString);
		popupwin.focus();
		first = false;
	} else {
		if ( popupwin != null && !popupwin.closed && previous_url == url ) { popupwin.focus(); }
		else {
			if (popupwin.closed) {
				popupwin = window.open( url, "holmanWebb", winString);
				popupwin.focus();
			} else {
				popupwin.location = url;
				popupwin.focus();
			}
		}	
	}
	previous_url = url ;
}	


// These functions are used to check email address for subscription sign up
// they were moved from functions.asp on the 14.09.2004 to check if they were
// the reason for the large gap on the RHS in some browsers
/*
var testresults

function checkemail(){
	var str=document.emailSubmit.fEmail.value
//	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
	var filter=/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/	
	if (filter.test(str))
testresults=true
else{
alert("Please input a valid email address!")
testresults=false
}
return (testresults)
}

function checkbae(){
if (document.layers||document.getElementById||document.all)
return checkemail()
else
return true
}
*/