Jquery: Selecting Siblings of $(this)
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I'm trying to get jquery to see when an element is changed and then run an action that involves it sibling like this: 

    $('.row').find('#class').change(function(){
			$(this).siblings('#teacher').removeAttr('disabled');
			var class_id = $(this).val();
		});

so when the input with an id of `class` is changed it will get its value and then affect its sibling with an id of `teacher`.  They are both inside of `<div class="row">` and this is repeated several times on the page.  

Thanks for the help.