function getPositions(){
    var specialty = document.clinicalFrm.job_specialty.options[document.clinicalFrm.job_specialty.selectedIndex].value;
    var location = document.clinicalFrm.location.options[document.clinicalFrm.location.selectedIndex].value;
    var gaurl = "/clinical-careers?specialty=" + escape(specialty) + "&location=" + escape(location);
    
    pageTracker._trackPageview(gaurl);

	$('#submit_btn').attr('value', "Please wait");
	$('#submit_btn').attr('disabled',true);
	$.ajax({
	   type: "POST",
	   url: "ajax/ajax.clinicalcareers.php",
	   data: $('#form').serialize(),
	   success: function(html){
		$('#results').html(html);
		$('#submit_btn').attr('value', "Show Me");
		$('#submit_btn').attr('disabled',false);
	   }
	 });
}