reset form

resetForm = (form) ->
  	frm_elements = form.elements
		for element in frm_elements
			field_type = element.type.toLowerCase();
			switch field_type
				when "text", "textarea", "hidden" then element.value = ""
				when "radio", "checkbox" then element.checked = false
				when "select-one", "select-multi" then element.selectedIndex = -1
				else element.innerHTML = "";