window.onload = jsFnOnload;

sfHover = function() {
	var sfEls = document.getElementById("menu").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
			var aDropdown = this.getElementsByTagName("UL");
			if ((aDropdown != null) && (aDropdown.length > 0))
			{
				var aDivs = this.nextSibling.getElementsByTagName("DIV");
		 		if (aDivs != null)
				{
					for(aDivsIndex = 0; aDivsIndex < aDivs.length; aDivsIndex++)
					{
						aDivs[aDivsIndex].style.display = 'none';
					}
				}
			}
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
			var aDropdown = this.getElementsByTagName("UL");
			if ((aDropdown != null) && (aDropdown.length > 0))
			{
				var aDivs = this.nextSibling.getElementsByTagName("DIV");
		 		if (aDivs != null)
				{
					for(aDivsIndex = 0; aDivsIndex < aDivs.length; aDivsIndex++)
					{
						aDivs[aDivsIndex].style.display = 'block';
					}
				}
			}
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);

function jsFnOnload()
{
	if (document.getElementById)
	{
		/* Associate logo's onclick event with home page */
		var logo = document.getElementById("logo");
 		if (logo != null) {
			logo.onclick = function() {
				window.location = 'index.php';
				return false;
			}
		}

		// Remove confirm
		var remove = document.getElementsByTagName("a");
 		if (remove != null) 
		{
			for(aremindex=0;aremindex<remove.length;aremindex++)
			{
				if(remove[aremindex].className=='rem')
				{
					remove[aremindex].onclick = JSFnRemoveClick;
				}
			}
		}
				
		var menu = document.getElementById("topmenu");
 		if (menu != null) 
		{
			var lis = menu.getElementsByTagName("li");
			for(aliindex=0;aliindex<lis.length;aliindex++)
			{
				if(lis[aliindex].className=='level1')
				{
					lis[aliindex].onclick = JSFnMenuLiClick;
					
					lis[aliindex].onmouseover = JSFnMenuLiOver;
					lis[aliindex].onmouseout = JSFnMenuLiOut;
				}
			}
		}		
		
		var aContactForm = document.getElementById('contactform');
		if (aContactForm != null) aContactForm.onsubmit = JSFnValidateContactForm;
		
		var aImageZoom = document.getElementById('largeimage');
		if (aImageZoom != null) aImageZoom.onclick = JSFnImageZoom;
	}
	
}

function JSFnRemoveClick()
{
	var removed = confirm("Are you sure you want to remove this item?");

	return removed;
}

function JSFnMenuLiOver()
{
	this.className = 'level1 hover';
}

function JSFnMenuLiOut()
{
	this.className = 'level1';
}

function JSFnMenuLiClick()
{
	window.location = this.childNodes[0].href;
	//alert(this.childNodes[0]);
}

function JSFnGoBack()
{
	history.go(-1);
}

function JSFnImageZoom()
{
	var aWindow = window.open(this.href, 'productbig', 'menubar=no, resizeable=no, toolbar=no, width=600px, height=600px')
	aWindow.focus();
	return false;
}

var aContactRequiredFields = new Array ("name","Please enter your name to continue");

function JSFnValidateContactForm()
{
	var aEmail = document.getElementById('email');
	var aTelephone = document.getElementById('telephone');

	if ((aEmail != null) && (aTelephone != null))
	{
		if ((aEmail.value == '') && (aTelephone.value == ''))
		{
			alert('You must provide either your telephone number or email address to continue.');
			return false;
		}
	}

	return JSFnValidateForm(aContactRequiredFields);
}

function JSFnValidateForm(aRequiredFields)
{
	for (aIndex = 0; aIndex < aRequiredFields.length; aIndex = aIndex + 2)
	{
		currElement = document.getElementById(aRequiredFields[aIndex]);
		if (currElement != null)
		{
			if  (   (   (currElement.type == 'text')
				     && (currElement.value == ''))
				 || (   (currElement.type == 'password')
				     && (currElement.value == ''))
				 || (   (currElement.type == 'checkbox')
				     && (currElement.checked == false))
				 || (   (currElement.type == 'file')
				     && (currElement.value == ''))
				 || (   (currElement.type == 'textarea')
				     && (currElement.value == ''))
				 || (   (currElement.type == 'select-one')
				     && (currElement.value == '')))
			{
				alert(aRequiredFields[aIndex + 1]);
				return false;
			}
			else if (currElement.type == 'radio')
			{
				aIndex = aIndex + 2;
				if (!currElement.checked)
				{
					currElement = document.getElementById(aRequiredFields[aIndex]);
					if ((currElement.type == 'radio') && (!currElement.checked))
					{
						alert(aRequiredFields[aIndex + 1]);
						return false;
					}
				}
			}
		}
	}
	return true;
}