def assert_exists(tag, element_id)
			if RWebSpec.framework == "Watir"
      	perform_assertion { assert(eval("#{tag}(:id, '#{element_id.to_s}').exists?"), "Element '#{tag}' with id: '#{element_id}' not found") }		
			else
				perform_assertion { assert( @web_browser.driver.find_element(:tag_name => tag, :id => element_id))}
			end
		
    end
def assert_exists(tag, element_id)
			if RWebSpec.framework == "Watir"
      	perform_assertion { assert(eval("#{tag}(:id, '#{element_id.to_s}').exists?"), "Element '#{tag}' with id: '#{element_id}' not found") }		
			else
				perform_assertion { assert( @web_browser.driver.find_element(:tag_name => tag, :id => element_id))}
			end
		
    end
Check a HTML element exists or not
 Example:
  assert_exists("label", "receipt_date")
  assert_exists(:span, :receipt_date)