Accordion jquery

Accordion jquery

Help please. how to do that on page load automatically open the first unit?
script
  1. <script type="text/javascript">
    $(document).ready(function() {
    $('.showhide').click(function() {
    $('.showhide-all').slideUp(500);
    $('.showhide').removeClass('active');
    $(this).next('div').filter(function(){return $(this).css('display')=='block'}).slideUp(500);
    $(this).next('div').filter(function(){
    return $(this).css('display')=='none'
    }).slideDown(500).prev('div').addClass('active');
    });
    });
    </script>










hpml
  1. <style type="text/css">
    .showhide{
    cursor: pointer;
        color: #fff; 
        text-decoration: none; 
        text-shadow: 1px 1px 2px #333; 
        background: #4698BF; 
        background: -webkit-gradient(linear, left top, left bottom, from(#55ACD4), to(#4698BF)); 
        background: -moz-linear-gradient(top,  #55ACD4,  #4698BF); 
        background: -o-linear-gradient(top, #55ACD4 0%, #4698BF 100%); 
        background: gradient(linear, top,  #55ACD4,  #4698BF); 
        border: 1px solid #46768B; 
        border-radius: 4px; 
        padding: 5px 11px; 
        font-size: 1.15em;
        width: 250px;
        margin-bottom:1px;
    }
    .showhide:hover,.showhide.active{
        color: #fff; 
        text-decoration: none;
        background: #A68328;
        background: -webkit-gradient(linear, left top, left bottom, from(#BFAB75), to(#A68328)); 
        background: -moz-linear-gradient(top,  #BFAB75,  #A68328); 
        background: -o-linear-gradient(top, #BFAB75 0%, #A68328 100%); 
        background: gradient(linear, top,  #BFAB75,  #A68328);
        border: 1px solid #A68328;
        border-radius: 4px;
    }
    .showhide-all{
        display:none;
        width: 250px;
        background: #FFE7A7; 
        background: -webkit-gradient(linear, left top, left bottom, from(#FFE7A7), to(#FFDE87)); 
        background: -moz-linear-gradient(top,  #FFE7A7,  #FFDE87); 
        background: -o-linear-gradient(top, #FFE7A7 0%, #FFDE87 100%); 
        background: gradient(linear, top,  #FFE7A7,  #FFDE87); 
        border: 1px solid #FFD25E; 
        padding: 5px 11px; 
        margin-bottom:3px;
    }
    </style>

    <script type="text/javascript">
    $(document).ready(function() {
    $('.showhide').click(function() {
    $('.showhide-all').slideUp(500);
    $('.showhide').removeClass('active');
    $(this).next('div').filter(function(){return $(this).css('display')=='block'}).slideUp(500);
    $(this).next('div').filter(function(){
    return $(this).css('display')=='none'
    }).slideDown(500).prev('div').addClass('active');
    });
    });
    </script>

    <div class="showhide">open1</div>
    <div class="showhide-all">
    text text text
    text text text
    </div>

    <div class="showhide">open2</div>
    <div class="showhide-all">
    text text text
    text text text
    </div>

    <div class="showhide">open3</div>
    <div class="showhide-all">
    text text text
    text text text
    </div>

    <div class="showhide">open4</div>
    <div class="showhide-all">
    text text text
    text text text
    </div>