function open_subnav() {

    var bottom;
    var inner;
    var content;
    var arrow;
    var spacer;
    var ie6 = navigator.appVersion.toLowerCase().indexOf("msie 6.") > 0; 
   
    bottom = document.getElementById('subnav_bottom');
    inner = document.getElementById('inner');
    content = document.getElementById('subnavi');
    arrow = document.getElementById('current_subnav_a');
    spacer = document.getElementById('spacer');

   	$('current_title').style.display = "none";
   	$('standard_title').style.display = "block";
   	
    if (content.style.display == "") {
        Effect.BlindUp('subnavi', { duration: 0.25 });
        setTimeout("hide_content_sub();",250);
        arrow.style.backgroundPosition = "left top";
        
    }
    
    if (content.style.display == "none") {
        if (!ie6) {
            bottom.style.display = "block";
        }        
        spacer.style.display = "block";
        Effect.BlindDown('subnavi', { duration: 0.25 });  
        arrow.style.backgroundPosition = "left bottom";
    }
    
    
}

function hide_content_sub() {

    var bottom;
    var inner;
    var spacer;

    inner = document.getElementById('inner');
    bottom = document.getElementById('subnav_bottom');
    spacer = document.getElementById('spacer');

   	$('current_title').style.display = "block";
   	$('standard_title').style.display = "none";
   	
    spacer.style.display = "none";
    bottom.style.display = "none";
    
  
    
}