// Utility functions
// May 2007 : Javascript
// Tim Surtell @ Clario

// Prevent site from opening in frames
//if (parent.frames.length > 0)
//	{
//	parent.location.href = location.href;
//	}
    
// Preload buttons and tabs
if (document.images)
	{
	// Tabs hover
	sector_1_top_hover = new Image(); sector_1_top_hover.src = "Images/Tabs/sector_1_top_hover.gif";   
	sector_1_bottom_hover = new Image(); sector_1_bottom_hover.src = "Images/Tabs/sector_1_bottom_hover.gif";   
	sector_2_top_hover = new Image(); sector_2_top_hover.src = "Images/Tabs/sector_2_top_hover.gif";   
	sector_2_bottom_hover = new Image(); sector_2_bottom_hover.src = "Images/Tabs/sector_2_bottom_hover.gif";   

	// Tabs on
	sector_1_top_on = new Image(); sector_1_top_on.src = "Images/Tabs/sector_1_top_on.gif";   
	sector_1_bottom_on = new Image(); sector_1_bottom_on.src = "Images/Tabs/sector_1_bottom_on.gif";   
	sector_2_top_on = new Image(); sector_2_top_on.src = "Images/Tabs/sector_2_top_on.gif";   
	sector_2_bottom_on = new Image(); sector_2_bottom_on.src = "Images/Tabs/sector_2_bottom_on.gif";   

	// Status
	status_waiting = new Image(); status_waiting.src = "Images/Icons/icon_status_waiting.gif";
	status_uploading = new Image(); status_uploading.src = "Images/Icons/icon_status_uploading.gif";
	
	// Homepage promo background
	promo_back = new Image(); promo_back.src = "Images/Boxes/Promos/promo_back.gif";
	}
	
	// Setup variables
	var DoShortcut = false;
	
//************************************************************************************************************
function CheckShortcuts(e)
	{
	if (window.event)
		{
		e = window.event.keyCode;
		}
	else
		{
		e = e.charCode;
		}
	
	if (e == 49 && DoShortcut == true)
		{
		location.href = ajaxPath + "admin";
		}
	if (e == 50 && DoShortcut == true)
		{
		location.href = ajaxPath + "candidate";
		}
	if (e == 51 && DoShortcut == true)
		{
		location.href = ajaxPath + "recruiter";
		}
	if ((e == 67 || e == 99) && DoShortcut == true)
		{
		location.href = ajaxPath + "admin_clients.aspx";
		}
	if ((e == 74 || e == 106) && DoShortcut == true)
		{
		location.href = ajaxPath + "admin_jobs.aspx";
		}
	if ((e == 65 || e == 97) && DoShortcut == true)
		{
		location.href = ajaxPath + "admin_candidates.aspx";
		}

	DoShortcut = false;

	if (e == 96)
		{
		DoShortcut = true;
		}
	}
//************************************************************************************************************
function CreateCookie(name, subkey, value, days)
	{
	if (days)
		{
		var date = new Date();
		date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
		var expires = "; expires=" + date.toGMTString();
		}
	else
		{
		var expires = "";
		}
	document.cookie = name + "=" + ReadCookie(name).replace("&" + subkey + "=" + value, "") + "&" + subkey + "=" + value + expires + "; path=/";
	}
//************************************************************************************************************
function ReadCookie(name)
	{
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i = 0; i < ca.length; i++)
		{
		var c = ca[i];
		while (c.charAt(0) == ' ') 
			{
			c = c.substring(1, c.length);
			}
		if (c.indexOf(nameEQ) == 0)
			{
			return c.substring(nameEQ.length, c.length);
			}
	}
	return "";
	}
//************************************************************************************************************
function EraseCookie(name)
	{
	CreateCookie(name, "", -1);
	}
//************************************************************************************************************
function ConvertToNumber(num)
	{
	num = num.toString().replace('k', '000');
	num = num.toString().replace(/\£|\,/g, '');

	if(isNaN(num) || num.length == 0)
		{
		num = 0;
		}
	else
		{
		num = parseFloat(num);
		}
		
	return num;
	}
//************************************************************************************************************
function FormatAsCurrency(num)
	{
	var showPence
	var pence
		
	num = ConvertToNumber(num);
		
	if (num == 0)
		{
		return "";
		}
	
	if (num < 100 || (num % 1) > 0)
		{
		showPence = true;
		}
	else
		{
		showPence = false;
		}

		num = Math.floor(num * 100 + 0.50000000001);
		pence = num % 100;
		num = Math.floor(num / 100).toString();

	if (pence < 10)
		{
		pence = "0" + pence;
		}
		
		for (var i = 0; i < Math.floor((num.length - (1 + i)) / 3); i++)
			{
			num = num.substring(0, num.length - (4 * i + 3)) + ',' + num.substring(num.length - (4 * i + 3));
			}

	if (showPence == true)
		{
		return (num + '.' + pence);
		}
	else
		{
		return num;
		}
	}
//************************************************************************************************************
	function Pad(n, totalDigits) 
    { 
    n = n.toString();
    
    var pd = '';
    
    if (totalDigits > n.length) 
			{ 
			for (i=0; i < (totalDigits-n.length); i++) 
				{ 
				pd += '0'; 
				} 
			}
			
    return pd + n.toString(); 
    }
//************************************************************************************************************
	function IsValidEmail(str)
		{
		return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
		}
//************************************************************************************************************
function SwapImage(imgName, imgFile)
	{
  if (document.images)
		{
    document.getElementById(imgName).src = imgFile;
    }
  }
//************************************************************************************************************
function SwapTab(Sector, State)
	{
  if (document.images)
		{
  	try
			{
			// Transitions work in IE
			document.getElementById("gscHeader_imgSector" + Sector + "Top").filters[0].apply();
			
			if (State)
				{
				document.getElementById("gscHeader_imgSector" + Sector + "Bottom").filters[0].direction = "Down";
				document.getElementById("gscHeader_imgSector" + Sector + "Bottom").filters[0].apply();
				document.getElementById("gscHeader_imgSector" + Sector + "Top").src = "Images/Tabs/sector_" + Sector + "_top_hover.gif";
				document.getElementById("gscHeader_imgSector" + Sector + "Bottom").src = "Images/Tabs/sector_" + Sector + "_bottom_hover.gif";
				}
			else
				{
				document.getElementById("gscHeader_imgSector" + Sector + "Bottom").filters[0].direction = "Up";
				document.getElementById("gscHeader_imgSector" + Sector + "Bottom").filters[0].apply();
				document.getElementById("gscHeader_imgSector" + Sector + "Top").src = "Images/Tabs/sector_" + Sector + "_top_off.gif";
				document.getElementById("gscHeader_imgSector" + Sector + "Bottom").src = "Images/Tabs/bottom.gif";
				}
			
			document.getElementById("gscHeader_imgSector" + Sector + "Top").filters[0].play();
			document.getElementById("gscHeader_imgSector" + Sector + "Bottom").filters[0].play();
			}
		catch(e)
			{
			if (State)
				{
				document.getElementById("gscHeader_imgSector" + Sector + "Top").src = "Images/Tabs/sector_" + Sector + "_top_hover.gif";
				document.getElementById("gscHeader_imgSector" + Sector + "Bottom").src = "Images/Tabs/sector_" + Sector + "_bottom_hover.gif";
				}
			else
				{
				document.getElementById("gscHeader_imgSector" + Sector + "Top").src = "Images/Tabs/sector_" + Sector + "_top_off.gif";
				document.getElementById("gscHeader_imgSector" + Sector + "Bottom").src = "Images/Tabs/bottom.gif";
				}
			}
    }
  }
//************************************************************************************************************
	function AutoSendSiteToAFriend()
		{
		if (ReadCookie("send_site_to_a_friend").indexOf("first_view") > 0)
			{
			if (ReadCookie("send_site_to_a_friend").indexOf("viewed") > 0)
				{
				}
			else
				{
				//OpenSendSiteToAFriend('center');
				}
			CreateCookie("send_site_to_a_friend", "state", "viewed", 7)
			}

		if (ReadCookie("send_site_to_a_friend") == "")
			{
			CreateCookie("send_site_to_a_friend", "state", "first_view", 7)
			}
		}
//************************************************************************************************************
	function OpenSendSiteToAFriend(position)
		{
		CloseFollowOnTwitter();
		CloseGetWidget();
		
		if (emailAddress.length > 0)
			{
			document.getElementById("txtSendSiteToAFriendFromEmailAddress").value = emailAddress;
			}
		
		switch(position)
			{
			case "center":
				document.getElementById("tblSendSiteToAFriend").style.left = "335px";
				document.getElementById("tblSendSiteToAFriend").style.top = "135px";
				break;
			case "header":
				document.getElementById("tblSendSiteToAFriend").style.left = (parseInt(GetElementX(document.getElementById("imgSendSiteToAFriendHeader"))) - 29) + "px";
				document.getElementById("tblSendSiteToAFriend").style.top = (parseInt(GetElementY(document.getElementById("imgSendSiteToAFriendHeader"))) + 27) + "px";
				break;
			case "footer":
				document.getElementById("tblSendSiteToAFriend").style.left = (parseInt(GetElementX(document.getElementById("imgSendSiteToAFriendFooter"))) + 96) + "px";
				document.getElementById("tblSendSiteToAFriend").style.top = (parseInt(GetElementY(document.getElementById("imgSendSiteToAFriendFooter"))) - 169) + "px";
				break;
			}
			document.getElementById("tblSendSiteToAFriend").style.display = "";
		}
//************************************************************************************************************
	function CloseSendSiteToAFriend()
		{
		document.getElementById("tblSendSiteToAFriend").style.display = "none";
		
		CreateCookie("send_site_to_a_friend", "state", "viewed", 7)
		}
//************************************************************************************************************
	function SendSiteToAFriend()
    {
    var FromEmailAddress;
    var ToEmailAddress;
    var Message;
       
    // Retrieve fields
    FromEmailAddress = document.getElementById("txtSendSiteToAFriendFromEmailAddress").value;
    ToEmailAddress = document.getElementById("txtSendSiteToAFriendToEmailAddress").value;
    Message = document.getElementById("txtSendSiteToAFriendMessage").value;
    
    // Validate fields
    if (IsValidEmail(FromEmailAddress) == false)
			{
			alert("Please enter a valid 'From' Email Address");
			document.getElementById("txtSendSiteToAFriendFromEmailAddress").focus();
			return false;
			}
			
    if (IsValidEmail(ToEmailAddress) == false)
			{
			alert("Please enter a valid 'To' Email Address");
			document.getElementById("txtSendSiteToAFriendToEmailAddress").focus();
			return false;
			}

    if (Message == "Message")
			{
			alert("Please enter a Message");
			document.getElementById("txtSendSiteToAFriendMessage").focus();
			return false;
			}

		var xmlHttp;
			
		// Instantiate a XMLHttpRequest object
		try
			{
			// Firefox, Opera 8.0+, Safari
			xmlHttp = new XMLHttpRequest();
			}
		catch (e)
			{
			// Internet Explorer
			try
				{
				xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
				}
			catch (e)
				{
				try
					{
					xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
					}
				catch (e)
					{
					alert("Your browser does not support AJAX!");
					}
				}
			}
			
		// Create a function to respond to XMLHttpRequest state changes
		xmlHttp.onreadystatechange = function()
			{
			if(xmlHttp.readyState == 4)
				{
				// Get return value
				var ReturnValue = xmlHttp.responseText;

				if (ReturnValue == "True")
					{
					alert("Your message has been successfully sent to " + ToEmailAddress + ".");
					CloseSendSiteToAFriend();
					}
				else
					{
					alert("There was a problem sending your message - please check your email addresses and try again.");
					}
				}
			}
			
			// Send request using XMLHttpRequest
			xmlHttp.open("GET", ajaxPath + "send_site_to_a_friend_ajax.aspx?FromEmailAddress=" + FromEmailAddress + "&ToEmailAddress=" + ToEmailAddress + "&Message=" + Message, true);
			xmlHttp.send(null);
    }
//************************************************************************************************************
	function OpenFollowOnTwitter()
		{
		CloseSendSiteToAFriend();
		CloseGetWidget();
		document.getElementById("tblFollowOnTwitter").style.left = (parseInt(GetElementX(document.getElementById("imgFollowOnTwitterHeader"))) - 160) + "px";
		document.getElementById("tblFollowOnTwitter").style.top = (parseInt(GetElementY(document.getElementById("imgFollowOnTwitterHeader"))) + 27) + "px";
		document.getElementById("tblFollowOnTwitter").style.display = "";
		}
//************************************************************************************************************
	function CloseFollowOnTwitter()
		{
		document.getElementById("tblFollowOnTwitter").style.display = "none";
		}
//************************************************************************************************************
	function OpenGetWidget()
		{
		CloseSendSiteToAFriend();
		CloseFollowOnTwitter();
		document.getElementById("tblGetWidget").style.left = (parseInt(GetElementX(document.getElementById("imgGetWidgetHeader"))) - 301) + "px";
		document.getElementById("tblGetWidget").style.top = (parseInt(GetElementY(document.getElementById("imgGetWidgetHeader"))) + 27) + "px";
		document.getElementById("tblGetWidget").style.display = "";
		}
//************************************************************************************************************
	function CloseGetWidget()
		{
		document.getElementById("tblGetWidget").style.display = "none";
		}
//************************************************************************************************************
function GetElementX(oElement)
	{
	var iReturnValue = 0;
	while( oElement != null )
	{
		iReturnValue += oElement.offsetLeft;
		oElement = oElement.offsetParent;
	}
	return iReturnValue;
}
//************************************************************************************************************
function GetElementY(oElement)
	{
	var iReturnValue = 0;
	while( oElement != null )
	{
		iReturnValue += oElement.offsetTop;
		oElement = oElement.offsetParent;
	}
	return iReturnValue;
}
//************************************************************************************************************
function SetTipPosition(Tip, OffsetX, OffsetY)
	{
	document.getElementById("tblTip" + Tip).style.left = (parseInt(GetElementX(document.getElementById("imgTip" + Tip))) + OffsetX) + "px";
	document.getElementById("tblTip" + Tip).style.top = (parseInt(GetElementY(document.getElementById("imgTip" + Tip))) + OffsetY) + "px";
	document.getElementById("tblTip" + Tip).style.display = "";
}
//************************************************************************************************************
function CloseTip(Tip)
	{
	document.getElementById("tblTip" + Tip).style.display = "none";

	var xmlHttp;
		
	// Instantiate a XMLHttpRequest object
	try
		{
		// Firefox, Opera 8.0+, Safari
		xmlHttp = new XMLHttpRequest();
		}
	catch (e)
		{
		// Internet Explorer
		try
			{
			xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
			}
		catch (e)
			{
			try
				{
				xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
				}
			catch (e)
				{
				alert("Your browser does not support AJAX!");
				}
			}
		}
		
	// Create a function to respond to XMLHttpRequest state changes
	xmlHttp.onreadystatechange = function()
		{
		if(xmlHttp.readyState == 4)
			{
			// Do nothing
			}
		}
		
		// Send request using XMLHttpRequest
		xmlHttp.open("GET", ajaxPath + "/close_tip_ajax.aspx?Tip=" + Tip, true);
		xmlHttp.send(null);
	}
//************************************************************************************************************
function ReformatDate(sender, args)
	{
	var strDate
	var regex
	var matches
	var dateToday = new Date();
	var MonthNames = new Array();
	
	MonthNames["jan"] = "01";
	MonthNames["feb"] = "02";	
	MonthNames["mar"] = "03";	
	MonthNames["apr"] = "04";	
	MonthNames["may"] = "05";	
	MonthNames["jun"] = "06";	
	MonthNames["jul"] = "07";	
	MonthNames["aug"] = "08";	
	MonthNames["sep"] = "09";	
	MonthNames["oct"] = "10";	
	MonthNames["nov"] = "11";	
	MonthNames["dec"] = "12";	
	
	MonthNames["january"] = "01";
	MonthNames["february"] = "02";	
	MonthNames["march"] = "03";	
	MonthNames["april"] = "04";	
	MonthNames["may"] = "05";	
	MonthNames["june"] = "06";	
	MonthNames["july"] = "07";	
	MonthNames["augu"] = "08";	
	MonthNames["september"] = "09";	
	MonthNames["october"] = "10";	
	MonthNames["november"] = "11";	
	MonthNames["december"] = "12";	
		
	args.IsValid = true;
	
	strDate = args.Value.toLowerCase();
	
	strDate = strDate.replace(/st/g, "");
	strDate = strDate.replace(/nd/g, "");
	strDate = strDate.replace(/rd/g, "");
	strDate = strDate.replace(/th/g, "");

	// Tests for correct entries using / or -
	regex = /(.*)(\/|-)(.*)(\/|-)(.*)/;
	matches = strDate.match(regex);
	if (matches != null)
		{
		strDate = Pad(RegExp.$1, 2) + "/" + Pad(RegExp.$3, 2) + "/" + Pad(RegExp.$5, 2);
		document.getElementById(sender.controltovalidate).value = strDate;
		return;
		}

	// Tests for correct entries without year
	regex = /(.*)(\/|-)(.*)/;
	matches = strDate.match(regex);
	if (matches != null)
		{
		strDate = Pad(RegExp.$1, 2) + "/" + Pad(RegExp.$3, 2) + "/" + dateToday.getYear();
		document.getElementById(sender.controltovalidate).value = strDate;
		return;
		}

	// Test for written date with month names and optional year (dd MMM yyyy)
	regex = /(\d+)( ?,? ?)([a-z]+)( ?,? ?)(\d+)?/i;
	matches = strDate.match(regex);
	if (matches != null)
		{
		if (RegExp.$5.length == 0)
			{
			strDate = Pad(RegExp.$1, 2) + "/" + MonthNames[RegExp.$3] + "/" + dateToday.getYear();
			}
		else
			{
			strDate = Pad(RegExp.$1, 2) + "/" + MonthNames[RegExp.$3] + "/" + Pad(RegExp.$5, 2);
			}

		document.getElementById(sender.controltovalidate).value = strDate;
		return;
		}

	// Test for written date with month names and optional year (MMM dd yyyy)
	regex = /([a-z]+)( ?,? ?)(\d+)( ?,? ?)(\d+)?/i;
	matches = strDate.match(regex);
	if (matches != null)
		{
		if (RegExp.$5.length == 0)
			{
			strDate = Pad(RegExp.$3, 2) + "/" + MonthNames[RegExp.$1] + "/" + dateToday.getYear();
			}
		else
			{
			strDate = Pad(RegExp.$3, 2) + "/" + MonthNames[RegExp.$1] + "/" + Pad(RegExp.$5, 2);
			}

		document.getElementById(sender.controltovalidate).value = strDate;
		return;
		}
	}
//************************************************************************************************************
function DocumentNameChanged(DocumentName)
	{
	var names = new Array;
	
	names[0] = "Application Form";
	names[1] = "Additional Information";
	names[2] = "Brochure";
	names[3] = "Equal Opportunities Form";
	names[4] = "Guidance Notes";
	names[5] = "Job Description";
	names[6] = "Person Specification";
	names[7] = "Project Profile";
	names[9] = "Role Profile";
	names[8] = "Recruitment Pack";
	names[10] = "Terms and Conditions";
	
	var found = false;
	
	for (var i = 0; i < names.length; i++)
		{
		if (names[i].toUpperCase().indexOf(DocumentName.value.toUpperCase()) == 0)
			{
			found = true;
			break;
			}
		}
				
	if (document.getElementById("txtNewDocumentName").createTextRange)
		{
		if (false && !found)
			{
			document.getElementById("txtNewDocumentName").value = document.getElementById("txtNewDocumentName").value.substring(0, document.getElementById("txtNewDocumentName").value.length - 1); 
			return;
			}
			
		var cursorKeys ="8;46;37;38;39;40;33;34;35;36;45;";
		
		if (cursorKeys.indexOf(event.keyCode+";") == -1)
			{
			var r1 = document.getElementById("txtNewDocumentName").createTextRange();
			var oldValue = r1.text;
			var newValue = found ? names[i] : oldValue;
			
			if (newValue != document.getElementById("txtNewDocumentName").value)
				{
				document.getElementById("txtNewDocumentName").value = newValue;
				var rNew = document.getElementById("txtNewDocumentName").createTextRange();
				rNew.moveStart('character', oldValue.length) ;
				rNew.select();
				}
			}
		}
	}