/*
 * These classes allow indexing of page numbers and "go to page" functionality.
 */
function goToPage( pageNum ) {
	var goToAddr = null;
	for ( i = 0; i < pageList.length; i++ ) {
		// alert( "Checking page index: page number requested " + pageNum + ", page in index entry " + pageList[i].pagenum + ", address in entry " + pageList[i].addr );
		if ( pageList[i].pageEquals( pageList[i], pageNum ) == true ) {
			goToAddr = pageList[i].addr;
			break;
		}
	}
	
	if ( goToAddr != null )
		parent.content.location = goToAddr;
	else
		alert( "There is no page number " + pageNum + " in this book." );
}