I think you need something like this

http://jsfiddle.net/miqdad/Qy6Sj/1/

You can view the code in jsfiddle here is the code what I have done created a div with another div inside as title bar and content box

html

<div id=widnow>

    <div id=title_bar>

        <div id=button>-</div>

    </div>

    <div id=box>

    </div>

</div>

css

#widnow{

    width:400px;

    border:solid 1px;

}



#title_bar{

    background: #FEFEFE;

    height: 25px;

    width: 100%;

}

#button{

    border:solid 1px;

    width: 25px;

    height: 23px;

    float:right;

    cursor:pointer;

}

#box{

    height: 250px;

    background: #DFDFDF;

}

jquery

$(#button).click(function(){

    if($(this).html() == -){

        $(this).html(+);

    }

    else{

        $(this).html(-);

    }

    $(#box).slideToggle();

});