var activeDiv = "A";

window.onload = function(){

    selectDiv(activeDiv);
}

function selectDiv(divId){
    if(activeDiv != divId){
        $(activeDiv+'-header').className = 'accordion_headings';
        Effect.BlindUp(activeDiv+'-content',{duration:0.5});
        //hide(activeDiv+'-content');    
        $(divId+'-header').className = 'accordion_headings header_highlight';
        setTimeout(function(){Effect.BlindDown(divId+'-content',{duration:0.5});},500);
        //show(divId+'-content');
        activeDiv = divId;
    }
}