Depends on if you allow javascript or not.
If you allow javascript, use jQuery to show/hide divs.
I just made the following wizard script. It supports multiple wizards on the same page, as long as you follow the class/div syntax below.
<div class="wizard">
<div class="step active">
some information
</div>
<div class="step" style="display:none">
Step 2 info
</div>
<div class="step" style="display:none">
Step 3 info
</div>
<input type="button" class="prev" style="display: none" value="Previous" />
<input type="button" class="next" value="Next" />
</div>
<script type="text/javascript">
$(function() {
$('.wizard .prev').click(function() {
var wizard = $(this).parent('.wizard');
$('.step.active', wizard).hide();
var currentStep = $('.step.active', wizard);
currentStep.hide();
currentStep.removeClass('active');
var newStep = currentStep.prev('.step', wizard);
newStep.addClass('active');
newStep.show();
if ($('.step:first', wizard)[0] == newStep[0]) {
$(this).hide();
}
$('.next', wizard).show();
});
$('.wizard .next').click(function() {
var wizard = $(this).parent('.wizard');
$('.step.active', wizard).hide();
var currentStep = $('.step.active', wizard);
currentStep.hide();
currentStep.removeClass('active');
var newStep = currentStep.next('.step', wizard);
newStep.addClass('active');
newStep.show();
if ($('.step:last', wizard)[0] == newStep[0]) {
$(this).hide();
}
$('.prev', wizard).show();
});
});
</script>
Without javascript:
Create a view model which contains information for all steps and share it between all wizard step views. This allows you to keep all state between the different POSTs.