function confirmAction(msg)
{
	if (!msg)
		msg = "Are you sure you wish to do this?";
		
	var agree=confirm(msg);
	if (agree)
		return true ;
	else
		return false ;
}
	
function printWindow(){
	browserVersion = parseInt(navigator.appVersion);
	if (browserVersion >= 4) 
	    window.print();
	// only v 4 and up print
}


function getElement(elementID)
{
	if (document.getElementById)
		return document.getElementById(elementID);
	else if (document.all)
		return document.all(elementID);
	else if (document.layers)
	    return document.elementID;
	else
		return null;
}

function toggleMenuVisibility()
{
	var openMenu = getElement('hidMenuOpen');
	if (openMenu)
	{
		if (openMenu.value == 1)
		{
			hideMenu();
		}
		else
			showMenu();
	}
	else
	{
		hideMenu();
	}
}

function tryMenuClose()
{
	var openMenu = getElement('hidMenuOpen');
	if (openMenu)
	{
		if (openMenu.value == 0)
		{
			hideMenu();
		}
		else
		{
			setTimeout("tryMenuClose();", 500);
		}
	}
	else
	{
		hideMenu();
	}
}

function getElementPosition(id) 
{
	var offsetElement = getElement(id);
	var offsetLeft = 0;
	var offsetTop = 0;
	while (offsetElement) 
	{
		offsetLeft += offsetElement.offsetLeft;
		offsetTop += offsetElement.offsetTop;
		offsetElement = offsetElement.offsetParent;
	}
	
	if (navigator.userAgent.indexOf("Mac") != -1 && typeof document.body.leftMargin != "undefined") 
	{
		offsetLeft += document.body.leftMargin;
		offsetTop += document.body.topMargin;
	}
	
	return {left:offsetLeft, top:offsetTop};
}

var	requiredVersion = 8;
var	maxVersion = 8;
var	actualVersion = 0;
var	isIE = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;    // true if we're on ie
var	isWin = (navigator.appVersion.indexOf("Windows") != -1) ? true : false; // true if we're on windows

var vbs = '<SCR' + 'IPT language=vbsc' + 'ript>';
vbs = vbs + 'If isIE And isWin Then\n';
vbs = vbs + 'On Error Resume Next\n';
vbs = vbs + 'For vbi = 2 To maxVersion\n';
vbs = vbs + 'If (IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash." & vbi))) Then\n';
vbs = vbs + 'actualVersion = vbi\n';
vbs = vbs + 'End If\n';
vbs = vbs + 'Next\n';
vbs = vbs + 'End If\n';
vbs = vbs + '</SCR' + 'IPT>'

document.write(vbs);

function hasFlash()
{
	if (navigator.plugins) 
	{
		if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) 
		{
			var isVersion2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";
			var flashDescription = navigator.plugins["Shockwave Flash" + isVersion2].description;

			var flashVersion = parseInt(flashDescription.charAt(flashDescription.indexOf(".") - 1));
			for (var index = 2; index <= maxVersion; index++)
			{
				if (flashVersion == index)
					actualVersion = index;
			}
		}
	}

	if(navigator.userAgent.indexOf("WebTV") != -1) 
		actualVersion = 3;

	return (actualVersion >= requiredVersion);
}

function toggleElementVisibility(id)
{
    if (document.getElementById)
	{
	    if (document.getElementById(id).style.display == 'none' || document.getElementById(id).style.visibility == 'hidden')
	    {
	        document.getElementById(id).style.display = '';
		    document.getElementById(id).style.visibility = 'visible';
	    }
	    else
	    {
	        document.getElementById(id).style.display = 'none';
		    document.getElementById(id).style.visibility = 'hidden';
	    }
	}
	else if (document.layers)
	{
	    if (document.layers[id].display == 'none')
		    document.layers[id].display = '';
		else
		    documeny.layers[id].display = 'none';
	}
}

function showElement(id)
{    
	if (document.getElementById)
	{
		if (document.getElementById(id).style.display == 'none')
			document.getElementById(id).style.display = '';
			
		if (document.getElementById(id).style.visibility == 'hidden')
			document.getElementById(id).style.visibility = 'visible';
	}
	else if (document.layers)
	{
		document.layers[id].display = '';
		document.layers[id].visibility = 'show';
	}
	
}

function hideElement(id)
{
	if (document.getElementById)
	{
	    document.getElementById(id).style.display = 'none';
		document.getElementById(id).style.visibility = 'hidden';
	}
	else if (document.layers)
	{
		document.layers[id].display = 'none';
		document.layers[id].visibility = 'hide';
	}
	else if (document.all)
	{
		eval("document.all." + id + ".style.display = 'none'");
	}
	
}

function clearTextBox(textBoxID)
{
    var textElement = getElement(textBoxID);
    textElement.value = "";
}

function toggleSelectAll(superCheckBoxID, checkBoxPrefix)
{
    if (getElement)
    {
        var chkBox = getElement(superCheckBoxID);
        if (chkBox)
        {
            var theForm = chkBox.form;
    
            for(z=0; z<theForm.length;z++)
            {
                if(theForm[z].type == 'checkbox' && theForm[z].name.toLowerCase().indexOf(checkBoxPrefix.toLowerCase()) == 0)
                {
	                theForm[z].checked = chkBox.checked;	  
	            }
	        }
        }
    }
}

function checkSuperCheckBox(superCheckBoxID, checkBoxPrefix)
{
    if (getElement)
    {
        var chkBox = getElement(superCheckBoxID);
        if (chkBox)
        {
            var theForm = chkBox.form;
            var check = true;
            for(z=0; z<theForm.length;z++)
            {
                if (theForm[z] != chkBox)
                {
                    if(theForm[z].type == 'checkbox' && theForm[z].name.toLowerCase().indexOf(checkBoxPrefix.toLowerCase()) == 0)
                    {
                        if (!theForm[z].checked)
                            check = false;	  
	                }
	            }
	        }
	        
	        chkBox.checked = check;
        }
    }
}

function changeCollapseExpand(id, collapseUrl, expandUrl)
{
    var img = getElement(id);
    if (img)
    {
       if (img.src.toLowerCase().indexOf(collapseUrl.toLowerCase()) >= 0)
            img.src = expandUrl;
        else
            img.src = collapseUrl;
    }
}

function checkSearchLength(id, msg)
{
    var searchBox = getElement(id);
    if (searchBox)
    {
        if (searchBox.value.length < 0)
        {
            alert(msg);
            searchBox.focus();
            return false;
        }
        else
            return true;
    }
    else
        return false;
}

function onChangeText(textBox, counterID, maxLength, lengthMessage)
{
    if (textBox.value.length > maxLength)
    {
        textBox.value = textBox.value.substring(0, maxLength);
        alert(lengthMessage);
    }
    
    var counterBox = document.getElementById(counterID);
    if (counterBox)
    {
        if (counterBox.innerText)
            counterBox.innerText = maxLength - textBox.value.length;
        else
            counterBox.value = maxLength - textBox.value.length;
    }
}

function roundNumber(number, decimalPlaces)
{
    var newnumber = 0;
	if (number > 8191 && number < 10485) // javascript handles these number strangely
	{
		number = number - 5000;
		newnumber = Math.round(number*Math.pow(10,decimalPlaces))/Math.pow(10,decimalPlaces);
		newnumber = newnumber + 5000;
	} 
	else 
	{
		newnumber = Math.round(number * Math.pow(10, decimalPlaces)) / Math.pow(10, decimalPlaces);
	}
	
	return newnumber;
}

function changeElementCssClass(id, className)
{
	var element = getElement(id);
	if (element)
	{
		element.className = className;
	}
}

function changeThumbnailClass(idPrefix, selectedClassName, deselectedClassName, firstImageNumber, lastImageNumber, selectedImageNumber)
{
	for (i = firstImageNumber; i <= lastImageNumber; i++)
	{
		if (i == selectedImageNumber)
			changeElementCssClass(idPrefix + i, selectedClassName);
		else
			changeElementCssClass(idPrefix + i, deselectedClassName);
	}
}

function changeImageSource(id, imageUrl)
{
	var element = getElement(id);
	if (element)
	{
		element.src = imageUrl;
	}
}

function getWindowDimensions() 
{
	var myWidth = 0
	var myHeight = 0;
	
	if(typeof(window.innerWidth) == 'number') 
	{
		//Non-IE
		myWidth = window.innerWidth;
		myHeight = window.innerHeight;
	} 
	else if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) 
	{
		//IE 6+ in 'standards compliant mode'
		myWidth = document.documentElement.clientWidth;
		myHeight = document.documentElement.clientHeight;
	} 
	else if (document.body && (document.body.clientWidth || document.body.clientHeight))
	{
		//IE 4 compatible
		myWidth = document.body.clientWidth;
		myHeight = document.body.clientHeight;
	}
  
  return {width:myWidth, height:myHeight};
}

function getElementDimensions(id) 
{
	var element = getElement(id);
	var myWidth = -1;
	var myHeight = -1;
	
	if (element)
	{
		myWidth = element.offsetWidth;
		myHeight = element.offsetHeight;
	}
	
	return {width:myWidth, height:myHeight};
}

function getElementPosition(id) 
{
	var offsetElement = getElement(id);
	var offsetLeft = 0;
	var offsetTop = 0;
	while (offsetElement) 
	{
		offsetLeft += offsetElement.offsetLeft;
		offsetTop += offsetElement.offsetTop;
		offsetElement = offsetElement.offsetParent;
	}
	
	if (navigator.userAgent.indexOf("Mac") != -1 && typeof document.body.leftMargin != "undefined") 
	{
		offsetLeft += document.body.leftMargin;
		offsetTop += document.body.topMargin;
	}
	
	return {left:offsetLeft, top:offsetTop};
}

function horizontalAlignElement(id, alignment)
{
	var elementToAlign = getElement(id);

	var elementWidth = elementToAlign.offsetWidth;
	var screenWidth = getWindowDimensions().width;
	if (elementToAlign)
	{
		switch (alignment)
		{
			case 'center':
				var left = 0.5 * (screenWidth - elementWidth);
				elementToAlign.style.left = left + 'px';
				break;
			case 'right':
				var left = screenWidth - elementWidth - 2;
				elementToAlign.style.left = left + 'px';
				break;
			default:
				elementToAlign.style.left = '0px';
				break;
		}
	}
}

/****** Trader Notes in Basket ************/

function showTraderNotes(id)
{
    showElement(id);
}

function hideTraderNotes(id)
{   
    hideElement(id);    
}

function isElementVisible(id)
{
    var element = getElement(id);
    
    if (element)
    {
        if (element.style.display == 'none')
            return false;
        else if (element.style.visibility == 'hidden')
            return false;
        else
            return true;
    }
    else
        return false;
}

function toggleTraderNotes(id)
{ 

    if(isElementVisible(id))
    {
        hideTraderNotes(id);
    }
    else
    {        
        showTraderNotes(id);
    }
}

function setIncVATValue(incVatID, exVatID, vatRate)
{     
    var exVatPrice = Number(getElement(exVatID).value);
    var incVatTextBox = getElement(incVatID);
    
    if (!isNaN(exVatPrice))
    {
        var tax = bankersRound(exVatPrice * vatRate / 100);    
        var price = exVatPrice + tax;  
        
        if (exVatPrice == 0)
        {
            incVatTextBox.value = "";
        }
        else
        {
            incVatTextBox.value = bankersRound(price).toFixed(2);    
        }
    }
    else
    {
        incVatTextBox.value = "";    
    }        
}

function setExVATValue(exVatID, incVatID, vatRate)
{
    var incVatPrice = Number(getElement(incVatID).value);
    var exVatTextBox = getElement(exVatID);
    
    if (!isNaN(incVatPrice))
    {
        var exVatPrice = incVatPrice / ((100 + vatRate) / 100);  
        
        if (incVatPrice == 0)
        {
            exVatTextBox.value = "";
        }
        else
        {   
            exVatTextBox.value = bankersRound(exVatPrice).toFixed(2);  
        }
    }
    else
    {  
        exVatTextBox.value = "";    
    } 
}   

function bankersRound(input)
{
      if (!isNaN(input))
      {
            var multiple = 1;
            if (input < 0)
                  multiple = -1;
                  
            var abs = Math.abs(input);
            var fullFigure = abs * 100;
            var floor = Math.floor(fullFigure);
            
            if (fullFigure - floor != 0.5)
                  return Math.round(input * 100) / 100;
            else
            {
                  if (Math.round(fullFigure) % 2 == 1) // 0.5, 2.5, 4.5, 6.5, 8.5 should round down
                        return Math.floor(fullFigure) / 100 * multiple;
                  else
                        return Math.round(fullFigure) / 100 * multiple;
            }
            
      }
      else
            throw "bankersRound(" + input + "): input is not a number";
}

// Brand Hover Functions

function openBrandHoverMenu(id)
{
    var spanMenu = getBrandHoverElement(id);        
    var menuState = getBrandHoverElement("hid" + id);        
    
    // alignHoverMenu(id);
    
    if (menuState.value != 1)
    {
        spanMenu.style.visibility = "visible";
        menuState.value = 1
    }
}

function closeBrandHoverMenu(id)
{    
    var menuState = getBrandHoverElement("hid" + id);
    var spanMenu = getBrandHoverElement(id);
    
    menuState.value = 0;
    
    setTimeout("scheduleBrandHoverClose('" + id + "');", 500);
}

function scheduleBrandHoverClose(id) 
{
    
    var spanMenu = getBrandHoverElement(id);
    var menuState = getBrandHoverElement("hid" + id);
    
    if (menuState.value == 0)
    {
	    spanMenu.style.visibility = "hidden";	
    }
    else
        setTimeout("scheduleBrandHoverClose('" + id + "');", 1000);
}

function getBrandHoverElement(elementID)
{
	if (document.getElementById)
		return document.getElementById(elementID);
	else if (document.all)
		return document.all(elementID);
	else
		return null;
}