javascript - Scroll to a particular ID within an iframe while retaining parent page position -


i needed able load particular page in iframe on demand, used simple wrapper:

function updateframe(url) {     frames[0].location = url; }

then asked load page particular point, non-trivial, since pages not within control , there weren't <a name> anchors rely on. poking around showed ids used anchors.

that say, can scroll <div id = "somewhere-down-the-line"> with:

updateframe("http://host/page#somewhere-down-the-line");

except call scrolls entire viewport above <div> goes top , in parent page above scrolls out of view.

how modify updateframe(url) scrolls page within <iframe> leaves rest of page is?

this hack worked me on firefox 20.0.1/windows. essentially, load page first, jump target:

function updateframe(url) {     if (url.indexof('#') > -1) {         mainpage = url.split('#')[0];         frames[0].location = mainpage;     }     frames[0].location = url; }

i able use in other browsers well. have been trying work in chrome. maybe i'll try internet explorer...

if hack ok, , you're looking cross-browser try using scrolltop reset were.

e.g. if body scrolls 

function updateframe(url) {     //save     var oldscroll = document.body.scrolltop;      //this moves our body!     frames[0].location = url;      //move     document.body.scrolltop = oldscroll; }

of course if doesn't scrolls entire viewport , instead modifies parent div or something, scrolltop property on element too.

let me know if works, screws scrolling on frame, because can modify account difference between 2 scrolltops


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