A question on offsetHeight.

[dmjpro]

Have a look at my JavaScript code...

function resizeFrameToFitScreen(){
            var outerFrameSet = window.parent.document.getElementById('outerFrameSet');
            alert(parent.document.body.offsetHeight);
            alert(document.body.offsetHeight);
            var top_frame_percentage = Math.round((100/parent.document.body.offsetHeight)*(document.body.offsetHeight+40));
            outerFrameSet.rows = top_frame_percentage+'%,'+(100-(top_frame_percentage+30))+'%,30%';
 
            window.parent._top_frame_percentage = top_frame_percentage;
        }
 

I am calling this function when a page is loaded. The page attached to a frame of a parent window. First alert shows the parent window offsetHeight, the actual one acquired by the parent window. And the second alert shows the actual height of the current window. If i don't add 40 with document.body.offsetHeight it would show me the scroll bars in the window, but i write this code to fit the current window according to the resolution. Where i am going wrong ?

[pronerd]

If top_frame_percentage is in fact supposed to be a percentage of the child frame inside the parent frame then you should be dividing the child frame by the parent frame. The math should look like this.

 
    var top_frame_percentage = (  document.body.offsetHeight / parent.document.body.offsetHeight  )* 100;
 
    top_frame_percentage =  Math.round( top_frame_percentage );
 
 

[dmjpro]

If top_frame_percentage is in fact supposed to be a percentage of the child frame inside the parent frame then you should be dividing the child frame by the parent frame. The math should look like this.

 
    var top_frame_percentage = (  document.body.offsetHeight / parent.document.body.offsetHeight  )* 100;
 
    top_frame_percentage =  Math.round( top_frame_percentage );
 
 

Is it not the same as ...
(100/parent.document.body.offsetHeight)*document.body.o ffsetHeight
?

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