function validate(form) {
	if (form.printsize.value != "0") {
		alert("Please select a print size!");
		return false;
	}
	
	if (form.colourtype.value != "0") {
		alert("Please select a colour type!");
		return false;
	}
	
	return true;
}

function switch_details()
{
	var cart = document.getElementById('cart_detail');
	var _cur_state = cart.style.display;
	if (_cur_state == 'none')
		cart.style.display = "block";
	else
		cart.style.display = "none";
}


function save_state()
{
	var cart = document.getElementById('cart_detail');
	var cookiename = 'detail_state';
	var cookievalue = cart.style.display;
	document.cookie = cookiename+"="+cookievalue;
}


function load_state()
{
	var cart = document.getElementById('cart_detail');
	var search = 'detail_state' + "=";
	var returnvalue = "";
	if (document.cookie.length > 0);
	{
		offset = document.cookie.indexOf(search);
		if (offset != -1)
		{
			offset += search.length;
			end = document.cookie.indexOf(";", offset);
			if (end == -1) end = document.cookie.length;
			returnvalue=unescape(document.cookie.substring(offset, end));
		}
	}

	if (returnvalue != 'none') returnvalue = 'block';
	cart.style.display=returnvalue;
}


function iecompattest()
{
	return (!window.opera && document.compatMode && document.compatMode!="BackCompat") ? document.documentElement : document.body;
}

function showall()
{
	var category = document.getElementById('all_category');
	category.style.left = startX;
	category.style.top = startY;
	var _cur_state = category.style.display;
	if (_cur_state == 'none')
		category.style.display = "block";
	else
		category.style.display = "none";
}

var ie5=document.all&&document.getElementById;
var ns6=document.getElementById&&!document.all;
var startX=ns6 ? ((window.innerWidth-750) / 2 + 250)+"px" : ((iecompattest().clientWidth-750) / 2 + 250)+"px";
var startY=ns6 ? "48px" : "55px";

window.onload = load_state;
window.onunload = save_state;


/*------------------------------------------------------------
	Document Text Sizer- Copyright 2003 - Taewook Kang.  All rights reserved.
	Coded by: Taewook Kang (txkang.REMOVETHIS@hotmail.com)
	Web Site: http://txkang.com
	Script featured on Dynamic Drive (http://www.dynamicdrive.com)
	
	Please retain this copyright notice in the script.
	License is granted to user to reuse this code on 
	their own website if, and only if, 
	this entire copyright notice is included.
--------------------------------------------------------------*/

//Specify affected tags. Add or remove from list:
var tgs = new Array( 'div','td','tr');

//Specify spectrum of different font sizes:
var szs = new Array( 'xx-small','x-small','small','medium','large','x-large','xx-large' );
var startSz = 2;

function ts( trgt,inc ) {
	if (!document.getElementById) return
	var d = document,cEl = null,sz = startSz,i,j,cTags;
	
	sz += inc;
	if ( sz < 0 ) sz = 0;
	if ( sz > 6 ) sz = 6;
	startSz = sz;
		
	if ( !( cEl = d.getElementById( trgt ) ) ) cEl = d.getElementsByTagName( trgt )[ 0 ];

	cEl.style.fontSize = szs[ sz ];

	for ( i = 0 ; i < tgs.length ; i++ ) {
		cTags = cEl.getElementsByTagName( tgs[ i ] );
		for ( j = 0 ; j < cTags.length ; j++ ) cTags[ j ].style.fontSize = szs[ sz ];
	}
}

function validateUser(theForm) {
	if (theForm.email.value == "") {
		alert("Please enter an email address. This will be used to login with!");
		return false;
	}
	
	if (theForm.password.value == "") {
		alert("Please enter a password. This will be used to login with!");
		return false;
	}
	
	if (theForm.firstname.value == "") {
		alert("Please enter the firstname of the customer!");
		return false;
	}
	
	if (theForm.lastname.value == "") {
		alert("Please enter the lastname of the customer!");
		return false;
	}
	
	if (theForm.addressline1.value == "") {
		alert("Please enter the customer address line 1!");
		return false;
	}
	
	if (theForm.postcode.value == "") {
		alert("Please enter the customer postcode!");
		return false;
	}
	
	if (theForm.phone.value == "") {
		alert("Please enter a contact phone number!");
		return false;
	}
	
	return true;
}