JS Child page Parent page method variables call each other

(1) The method or variable that the child page calls the parent page:

Window.parent. Method () or variable name
Window.parent is equivalent to locating the parent page and writing code in the parent page.

Window.parent.aa (); // The window.parent.bb of AA function is adjusted ; // Pick BB Variable For example, to get the value window.parent.$ ("#aaa") of the text box with ID AAA in the Sub-page. Val (); //  window.parent.getElementById (//JS notation

(2) parent page Fetch sub-page

Mainly through Contentwindow to the sub-page

document.getElementById ("Childframe"). Contentwindow.childtest (); // Childtest method in the paging sub-page   js notation var childwindow = $ ("#addFrame") [0].contentwindow; // gets the object in the subform childwindow.formsubmit (); // Formsubmit method for fetching sub-pages how  jquery is written // commented: Where Childframe and Addframe are the IDs of the IFRAME

JS Child page Parent page method variables call each other