For once, I have a script fully working... I have four tabs that pull down when clicked. If a tab is open, and you click another tab, the opened tab closes first, then the selected tab opens.

Here is a working example (Open Tab1, then click Tab2 and note how it closes quickly, i want Tab1 to slide closed, then Tab2 slide open):
http://psylicyde.com/misc/slide-panel

The problem is that the open tab closes abruptly when changing tabs. Is there anyway to smooth it out? Here is my code, with highlights.

PHP Code:
$(document).ready(function(){

    $(
".btn-slide1").click(function(){
        
// first close any other open panels
        
$("#panel2").hide();
        $(
"#panel3").hide();
        $(
"#panel4").hide();
        
        
// then open the selected panel
        
$("#panel1").slideToggle("slow");
        $(
this).toggleClass("active"); return false;
    });
    
    $(
".btn-slide2").click(function(){
        
// first close any other open panels
        
$("#panel1").hide();
        $(
"#panel3").hide();
        $(
"#panel4").hide();
        
        
// then open the selected panel
        
$("#panel1").hide();
        $(
"#panel2").slideToggle("slow");
        $(
this).toggleClass("active"); return false;
    });    
    
    $(
".btn-slide3").click(function(){
        
// first close any other open panels
        
$("#panel1").hide();
        $(
"#panel2").hide();
        $(
"#panel4").hide();
        
        
// then open the selected panel
        
$("#panel3").slideToggle("slow");
        $(
this).toggleClass("active"); return false;
    });    
    
    $(
".btn-slide4").click(function(){
        
// first close any other open panels
        
$("#panel1").hide();
        $(
"#panel2").hide();
        $(
"#panel3").hide();
        
        
// then open the selected panel
        
$("#panel4").slideToggle("slow");
        $(
this).toggleClass("active"); return false;
    });    
     
});