<form method="get" action="https://cscie12.dce.harvard.edu/echo">
<div>What ice cream do you like?<br/>
<input type="checkbox" name="icecream" id="icecream_chocolate" value="chocolate"/><label for="icecream_chocolate">Chocolate</label><br/>
<input type="checkbox" name="icecream" id="icecream_cpb" value="chocolate peanut butter"/><label for="icecream_cpb">Chocolate Peanut Butter</label><br/>
<input type="checkbox" name="icecream" id="icecream_vanilla" value="vanilla"/><label for="icecream_vanilla">Vanilla</label><br/>
<input type="checkbox" name="icecream" id="icecream_strawberry" value="strawberry"/><label for="icecream_strawberry">Strawberry</label><br/>
<input type="submit" name="action" value="Proceed"/></div>
</form>