Get the div of current scroll offset of UIWebView

Question

I have two different HTML files, two different UIWebViews & a UISegmentControl. On segmentChanged, I had displayed the WebView by loading a HTML file. Both HTML files contains common sections only the section content is changed. Now I want to implement the functionality that, when user reads section 1.1 of first WebView & clicks Segment for loading second WebView, then the second WebView needs to scroll upto the section 1.1 which he reads in first WebView and viceversa. Also there are n number of sections. I used following javacript but it needs the parameter of current div id. But on scroll, how can I get the current visible div id. I had given the id for each div.

function pointInView(id)
{
    var divid = document.getElementById(id);
    divid.scrollIntoView(true);
    return false;
}

Anyone please help me.

Answer 1

I searched a lot to get the div id from current scroll offsetbut didn't get the solution for it. So I go with the other option that, stored the start & end offsets of each section in both files. So I had created one look-up table in database & stored the start & end offsets of each section in both files.

ex. When user scrolls the first webview to section 1.1 & clicks the switch to open the second webview, then I scrolled the second webview to the section 1.1 in the second file.