// SCRIPT BY ANDRIS ZAČS (R) 2006 andris.z@metaleks.lv
function swap_display_by_id( id ){  
  var a = document.getElementById( id );  
  if( a.style.display == 'none' ){
    a.style.display = '';
  } else {
    a.style.display = 'none';
  }
}
function display_by_id( id, type ){
  if( ! document.getElementById( id ) ){
    //alert( 'No object "' + id + '"!' ); 
    return;  
  }
  if( type ) {
    document.getElementById( id ).style.display=type;
    if( ( document.getElementById( id ).onHide ) && ( type == 'none' ) ) document.getElementById( id ).onHide();
    if( ( document.getElementById( id ).onDisplay ) && ( type = '' ) ) document.getElementById( id ).onDisplay(); 
  } else {
    document.getElementById( id ).style.display='';
    if( document.getElementById( id ).onDisplay ) document.getElementById( id ).onDisplay();    
  }  
}
function show_page( nr, tag_id_s, tad_id_s_c, tag_id_s_gr, script ){
    if( ! tag_id_s ) tag_id_s = 'page_';
    if( ! tad_id_s_c ) tad_id_s_c = 'control_pg_';
    if( ! tag_id_s_gr ) tag_id_s_gr = 'pages';
    display_by_id( tag_id_s_gr );   
    for( key in nr ){      
      if( el( tad_id_s_c + nr[ key ] ) ) el( tad_id_s_c + nr[ key ] ).className='sel_pg';      
      display_by_id( tag_id_s + nr[ key ] );
    }
    if( script ) eval( script );          
}
function show_page1( nr, tag_id_s, tad_id_s_c, tag_id_s_gr, script ){
    if( ! tag_id_s ) tag_id_s = 'page_';
    if( ! tad_id_s_c ) tad_id_s_c = 'control_pg_';
    if( ! tag_id_s_gr ) tag_id_s_gr = 'pages';
    display_by_id( tag_id_s_gr );   
    for( key in nr ){      
      if( el( tad_id_s_c + nr[ key ] ) ) el( tad_id_s_c + nr[ key ] ).className='sel_pg';      
      display_by_id( tag_id_s + '0' );
    }
    if( script ) eval( script );          
}
function hide_pages( tag_id_s, tad_id_s_c, tag_id_s_gr, cl ){    
    if( ! tag_id_s ) tag_id_s = 'page_';
    if( ! tad_id_s_c ) tad_id_s_c = 'control_pg_';
    if( ! tag_id_s_gr ) tag_id_s_gr = 'pages';
    if( ( ! cl ) && ( cl != true ) ) cl = false; 
    var a = el( tag_id_s_gr ).getElementsByTagName( 'div' );    
    for( j = 0; j < a.length; j++ ){      
      if( a[ j ].id.substr( 0, tag_id_s.length ) == tag_id_s ){        
        a[ j ].style.display = 'none';        
        if( cl ){          
          clearNode( a[ j ] );
        }                        
      }
    }
    var a = el( tag_id_s_gr ).getElementsByTagName( 'div' );    
    for( j = 0; j < a.length; j++ ){      
      if( a[ j ].id.substr( 0, tad_id_s_c.length ) == tad_id_s_c ){        
        if( ! a[ j ].className2 ) a[ j ].className='unsel_pg'; else a[ j ].className = a[ j ].className2;        
      }
    }
}