10. The system of claim 9 , further configured to perform operations comprising: displaying the first language text after a predetermined period of time has elapsed after the user points to the portion of the translated document; removing the display of the first language text after a second predetermined period of time has elapsed after a user ceases to point to the portion of the translated document; and canceling the removal of the display of the first language text if the user again points to the portion of the translated document before the second predetermined period of time has elapsed.
9. A system comprising: one or more computing devices configured to perform operations including: receiving, using one or more processors, a user request to translate a source web document from a first language text to a second language text; generating a translated web document containing a translation of the source web document into the second language text; presenting the translated web document to the user; and displaying the first language text that corresponds to a portion of the translated web document in a graphical element overlaying the translated web document in response to the user pointing to the portion of the translated web document.