<script type="text/javascript" src="http://www.listedinle.com/_js/jq.js"></script>

<div id="inputlar">
<input name="modtype" id="i1" type="checkbox" value="value1" />value1
<input type="checkbox" name="modtype" value="value2" />value2
</div>

<div class="row" id="div1" style="display:none">Show Div 1</div>
<div class="row" id="div2" style="display:none">Show Div 2</div>


<script type="text/javascript">
$("#inputlar").find("input:first-child").attr('checked','checked');
var secili = $("#inputlar").find("input:first-child").attr("checked");


if(secili='checked'){
	$("#div1").show();
}


</script>