Mutual access between HTML parent window and variables in IFRAME_html/css_WEB-ITnose

1. HTML parent window accesses variables or functions in IFRAME

Write in the parent window script:

//Call variable assignment

IframeObj.contentWindow.someVar = "test is ok";

//Call function

IframeObj.contentWindow.someFunction();

2. IFRAME in HTML accesses variables or functions in the parent window

Assume that there is a method in the parent window script:

function showMsg(str){

alert ('Read from iframe:' str);

}

Then in IFRAME you can call the showMsg() function of the parent window like this:

var str = 'Wahaha!';

window.parent.showMsg(str);