var tabPane;

function showArticleTab( sName ) {
if (typeof tabPane != "undefined" ) {

switch ( sName ) {

case "part1":
tabPane.setSelectedIndex( 0 );
break;

case "part2":
tabPane.setSelectedIndex( 1 );
break;

case "part3":
tabPane.setSelectedIndex( 2 );
break;

case "part4":
tabPane.setSelectedIndex( 3 );
break;

case "part5":
tabPane.setSelectedIndex( 4 );
break;
}
}
}