ASP.NET forcing page reload and effecting jQuery

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I am using jQuery for some functionality within my ASP.NET application, however every time a jQuery event is triggered the results display for a second but the page then refreshes. The code will take what the user selects from an select box and put it into a text box, the thing is it works in chrome but for the life of me I cannot get it working in firefox. I need this to work in fixfox as it will be getting in it.How could I get this to work in firefox:\[code\]<script type="text/javascript"> $(function () { $('#mybkng').hide(); $('#props').click(getProp); }); function getProp() { var prop = $(this).val(); $('#select').click(function () { event.preventDefault(); $('#mybkng').show(); $('#theproperty').val(prop); }); }</script>\[/code\]Any help would be appreciated this has been driving me nuts. Also would it be possible to do this with VB?