/*
	tabfuncs.js
	control the 'TAB' display of separate orde form parts
*/
//alert( 'tabfuncs.js' );

function ResetAll( flag )
{
//	hide all the top ones
	document.getElementById('subs')		.style.visibility='hidden';
	document.getElementById('books')	.style.visibility='hidden';
	document.getElementById('ebooks')	.style.visibility='hidden';
	document.getElementById('gen')		.style.visibility='hidden';
	
	document.getElementById('subspage')		.style.display='none';
	document.getElementById('bookspage')	.style.display='none';
	document.getElementById('ebookspage')	.style.display='none';
	document.getElementById('genpage')		.style.display='none';
	document.getElementById('summary')		.style.display='none';

	if( flag == false )
	{
	//	show all the bottom ones
		document.getElementById('subsn').	style.visibility='visible';
		document.getElementById('booksn').	style.visibility='visible';
		document.getElementById('ebooksn').	style.visibility='visible';
		document.getElementById('genn').	style.visibility='visible';
	}
	else
	{
	//	everything stays hidden
		document.getElementById('subsn').	style.visibility='hidden';
		document.getElementById('booksn').	style.visibility='hidden';
		document.getElementById('ebooksn').	style.visibility='hidden';
		document.getElementById('genn').	style.visibility='hidden';
	}
}

function showtab( theTab )
{
//alert("showtab ");//- " + document.getElementById( theTab ).style.id );
	ResetAll(false);
	document.getElementById( theTab ).style.visibility='visible';
	document.getElementById( theTab+'n' ).style.visibility='hidden';
	document.getElementById( theTab+'page' ).style.display='block';
}


function showsummary()
{
	ResetAll( true );
	document.getElementById('summary').style.display='block';
}