function updateVAT( incVAT ) {
	
	var incVATElements = YAHOO.util.Dom.getElementsByClassName( 'itemIncVAT' );  
	var exVATElements = YAHOO.util.Dom.getElementsByClassName( 'itemExVAT' );  
	
	if( incVAT ) {
		// alter the toggle
		document.getElementById( 'showVATInBasket' ).checked = true;
		// update all the elements
		if ( typeof incVATElements != 'undefined' && incVATElements.length > 0 ) {
			for( incVATElement in incVATElements ) {
				YAHOO.util.Dom.setStyle( incVATElements[incVATElement], 'display', 'inline' );
			}
		}
		if ( typeof exVATElements != 'undefined' && exVATElements.length > 0 ) {
			for( exVATElement in exVATElements ) {
				YAHOO.util.Dom.setStyle( exVATElements[exVATElement], 'display', 'none' );
			}
		}
		
	} else {
		// alter the toggle
		document.getElementById( 'showVATInBasket' ).checked = false;
		// update all the elements
		if ( typeof incVATElements != 'undefined' && incVATElements.length > 0 ) {
			for( incVATElement in incVATElements ) {
				YAHOO.util.Dom.setStyle( incVATElements[incVATElement], 'display', 'none' );
			}
		}
		if ( typeof exVATElements != 'undefined' && exVATElements.length > 0 ) {
			for( exVATElement in exVATElements ) {
				YAHOO.util.Dom.setStyle( exVATElements[exVATElement], 'display', 'inline' );
			}
		}
	}
	
	setCookie( 'showVATInBasket', incVAT );
}

function checkVATCookie() {
	var cookieVal = getCookie( 'showVATInBasket' );
	// if val is true or not previously been set...
	if ( cookieVal != 'true' || cookieVal == 'false' || typeof cookieVal == 'undefined' ) {
		updateVAT( );
	} else {
		updateVAT( true );
	}
}

function setCookie( name, value ) {
	document.cookie = name + '=' + value + ';path=/;';
}

function getCookie( name ) {
	var start = document.cookie.indexOf( name + "=" );
	var len = start + name.length + 1;
	if ( ( !start ) && ( name != document.cookie.substring( 0, name.length ) ) ) {
		return null;
	}
	if ( start == -1 ) {
		return null;
	}
	var end = document.cookie.indexOf( ";", len );
	if ( end == -1 ) {
		end = document.cookie.length;
	}
	return unescape( document.cookie.substring( len, end ) );
}