Question

i am not saying its difficult but i would like to know what way is used professionally.

what i do is declare iframes from html code and assign a scr to it,

but the problems are

switching the html code each time for declaration

the size of frame does not change/ adjust with the page in it, scroll bars do appear but thats not it

so any advice

Answer 1

Use the onload on your iframe and recalculate/set the new width and height on your iframe.

The onload is fired when new content has been loaded inside the iframe.

Some similar: Dynamically resizing navigation div to main content

On the internet you can find some example how you can get the internal width.
Here is one…

http://www.infoqu.com/dev/javascript-development/getting-iframe-width-194102-1/

var the_height=document.getElementById('the_iframe').contentWindow.document.body.scrollHeight;//find the height of the internal page

var the_width=document.getElementById('the_iframe').contentWindow.document.body.scrollWidth;//find the width of the internal page