How to get scrollTop of an iframe

Question

jQuery\'s scrollTop returns null when window is an iframe. Has anyone been able to figure out how to get scrollTop of an iframe?

more info:

my script is runn

Answer 1

or use this one

sample.showLoader = function() {
// show cursor wait
document.getElementsByTagName('body')[0].style.cursor = 'wait';
var loader = $('#statusloader');
// check if we're runnign within an iframe
var isIframe = top !== self;
if (isIframe) {
    var topPos = top.pageYOffset + 300;
    // show up loader in middle of the screen
    loader.show().css({
        top : topPos,
        left : '50%'
    });
} else {
    // show up loader in middle of the screen
    loader.show().css({
        top : '50%',
        left : '50%'
    });
}
};