Position the form elements
Assertion of form elements
Handle rich text box
Positioning table of elements
tr row
td, th is a column --- tr and th positioning element can be used
name and id relatively stable, there is no name and id form is problematic
Table form is, there is the header, form, footer,
Rich text box, use js positioning - is the value of ifram body, embedded page, change the assignment is ifram
Rich text box copy, 1, js first visit ifram, 2, and then access ifram in contentwindow, 3, Revisited