If you want fetch the variable value or send variable to parent page.
Use following code:
In Parent page use this copy paste folliwing javascript.
function showValue(testval)
{
alert(testval);
//here in parent page you call any other function as per your need.
}
In Iframe page use following code. In Iframe page use this copy paste folliwing javascript.
// Calls the function showValue in the parent object
// and passes the value of 't' to it
function passToParent(val)
{
var testval;
if ( (testval = window.parent) && (testval = testval.showValue) && ('function' == typeof testval || 'object' == typeof testval) ){
testval(val);
}
}
This will solve your problem.
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