[Nexus]

<input type="button" name="button" id="button_pdt" value="Товары" onclick="change()"/>
<input class="tab_pdt" id="tab1" type="radio" name="tabs" checked>
<input class="tab_pdt" id="tab2" type="radio" name="tabs">
<input class="tab_pdt" id="tab3" type="radio" name="tabs">
<input class="tab_pdt" id="tab4" type="radio" name="tabs">
<input class="tab_pdt" id="tab5" type="radio" name="tabs">
<style>input{display:block;}</style>
<script>
	function change(){
		var inputs=document.querySelectorAll('.tab_pdt'),
			active=Math.floor(Math.random()*inputs.length);
		
		[].forEach.call(inputs,function(input,i){
			input.checked=i==active;
		});
	}
</script>