image0 = new Image();
image0.src = "images/home_a.gif";
image1 = new Image();
image1.src = "images/about_a.gif";
image2 = new Image();
image2.src = "images/contact_a.gif";
image3 = new Image();
image3.src = "images/sellers_a.gif";


// {{{ printBanner () 
function printBanner ()
{
	index 		= Math.floor(Math.random() * 4 ) + 1;

	document.write( '<img src="/images/banners/head_' + index + '.jpg" width="710" height="395" id="printBanner" />' );
}
// }}}

// {{{ auctionFormSubmit ( form ) 
function auctionFormSubmit ( form )
{
	var email	= form.elements['email'];
	var phone	= form.elements['phone'];
	var itemID	= form.elements['itemID'];
	
	var regExpItem	= /\d{10,15}/;
	var regExpPhone	= /\d{10,11}/;

	if ( ! regExpItem.exec( itemID.value ) )
	{
		alert( 'Invalid eBay Item Number. Must Contain 10 Digits Only.' );
		itemID.focus();
		return false;
	}

	if ( ! isValidEmail( email.value ) )
	{
		alert( 'Invalid Email Address. Example: name@domain.com ' );
		email.focus();
		return false;
	}

	if ( ! regExpPhone.exec( phone.value ) )
	{
		alert( 'Invalid Phone Number. Must Contain 10 Digits Only. Example: 9545551212 ' );
		phone.focus();
		return false;
	}

	form.submit();

	return true;
}
// }}}

// {{{ isValidEmail( str ) 
// only basic check
function isValidEmail( str ) 
{
	return ( str.indexOf(".") > 2 ) && ( str.indexOf("@") > 0 );
}
// }}}