Filter between two dates on search form

<p>I have a search form set-up that I would like to make filter between two dates.&nbsp;</p><p>The following is how I have the end and start date fields set-up on the form:&nbsp;<a href="http://dnndev.com/fiddle/fid/415" style="font-family: Arial, Helvetica, Verdana, Tahoma, sans-serif; font-size: 16px;">http://dnndev.com/fiddle/fid/415</a></p><p>Based on those start and end dates I then want to have my template provide a results set between those two dates based on my date_timesheet field, but can't seem to figure out how to put it together correctly.</p><p>I've posted the current select statement here and if anyone could help me figure out how to make it properly select between those two date parameters that would be appreciated:&nbsp; <p><a href="http://dnndev.com/fiddle/fid/416">http://dnndev.com/fiddle/fid/416</a></p></p>