TT#70901 selenium: add click_js

- this function will click an element using javascript instead of the normal
click command. selenium refuses to click some parts of the website even though
they are clearly visible and clickable (i.e language settings)

Change-Id: I4c2b821359a0f6bb0a58e22a28e48ba4fbc9af7b

t/selenium/functions/Functions.py

@@ -33,3 +33,11 @@ def move_and_click(driver, element, clickelement=None):
     else:
         hoverclick.click()
     hoverclick.perform()
+
+
+def click_js(driver, element):
+    if element[:2] == "//":
+        webelement = driver.find_element_by_xpath(element)
+    else:
+        webelement = driver.find_element_by_link_text(element)
+    driver.execute_script("arguments[0].click();", webelement)