Thank you, Sir.
If I understood right. Switch Button will display ON if load value equal default value.
<button id="b1">Load</button>
<button id="b2">Clear</button>
<form id="ff">
<p><input name="t1" class="easyui-textbox"></input></p>
<p>Option 1
<input name="s1" class="easyui-switchbutton" value="1"></input>
</p>
<p>Option 2
<input name="s2" class="easyui-switchbutton" value="1"></input>
</p>
</form>
<script>
$('#b1').click(function(){
$('#ff').form('load', {
t1:'text1',
s1: '1',
s2: '0'
});
});
$('#b2').click(function(){
$('#ff').form('clear');
});
</script>