Why is this page so slow to render in Internet Explorer?

[mark4asp]

Why is this page so slow to render in Internet Explorer?

<http://mark4asp.freeho stingnow.com/Search.html>

When browsing the page locally, this is my estimated time that the
page takes to refresh using various browsers:

Safari ~ 0.2 s
Firefox < 1s
Opera ~ 1s
IE 6 ~ 7s

I have tried to optimise several aspects for IE: I installed MS
JScript 5.7 on my PC, got rid of all but one table, explicitly set the
width of all the select elements.

What am I doing so wrong in this page that it takes so long to render
in IE?

[Beauregard T. Shagnasty]

mark4asp wrote:

Why is this page so slow to render in Internet Explorer?

<http://mark4asp.freeho stingnow.com/Search.html>

<snip>

What am I doing so wrong in this page that it takes so long to render
in IE?

Without actual testing, I'd bet it is the three thousand or so
<option>'s you have in the <select>s. Try chopping out all but a few in
each of those huge ones, and see if IE performance increases.

It did actually load fairly quick in IE6 for me. I have JavaScript
disabled, if that matters.

--
-bts
-Motorcycles defy gravity; cars just suck

[Beauregard T. Shagnasty]

mark4asp wrote:

"Beauregard T. Shagnasty" wrote:

>Without actual testing, I'd bet it is the three thousand or so
<option>'s you have in the <select>s. Try chopping out all but a few
in each of those huge ones, and see if IE performance increases.

Yes. Thanks. Removing the content sure does speed it up.
<http://mark4asp.freeho stingnow.com/SearchNoOptions .html>

but makes it practically useless.

Well of course, but now you know the reason! ;-)

... I will have to write my own javascript incremental search if I
load the data after window.onload.

Just be aware that about 10% of your visitors won't see it... those who
disable JavaScript or have it stripped by a corporate firewall. This is
about the same as turning your server off for a month every year.

--
-bts
-Motorcycles defy gravity; cars just suck

[mark4asp]

On 25 Oct, 16:14, "Beauregard T. Shagnasty"
<a.nony.m...@ex ample.invalidwr ote:

mark4asp wrote:

"Beauregard T. Shagnasty" wrote:

Without actual testing, I'd bet it is the three thousand or so
<option>'s you have in the <select>s. Try chopping out all but a few
in each of those huge ones, and see if IE performance increases.

Yes. Thanks. Removing the content sure does speed it up.
<http://mark4asp.freeho stingnow.com/SearchNoOptions .html>

but makes it practically useless.

Well of course, but now you know the reason! ;-)

... I will have to write my own javascript incremental search if I
load the data after window.onload.

Just be aware that about 10% of your visitors won't see it... those who
disable JavaScript or have it stripped by a corporate firewall. This is
about the same as turning your server off for a month every year.

All my visitors are corporate and they all have javascript enabled
otherwise they can't see the site.

Any that have problems phone up and are sorted out. Most have it
demonstrated to them at their workplace before they subscribe; but
there have been a few who were unable to use the site during the
demo; so I guess these are our lost customers?

[Beauregard T. Shagnasty]

mark4asp wrote:

All my visitors are corporate and they all have javascript enabled
otherwise they can't see the site.

Ok, I didn't notice if you said it was an intranet/corporate site or
not. Do you have control over which browsers they use? Give 'em Opera or
Firefox.

--
-bts
-Motorcycles defy gravity; cars just suck

[Bergamot]

mark4asp wrote:

>>

<http://mark4asp.freeho stingnow.com/SearchNoOptions .html>

there have been a few who were unable to use the site during the
demo;

That may have less to do with having JavaScript enabled and more with
how the page adapts (or not) to variations in browser settings. It's
unusable for me because it doesn't adapt to enlarged text sizes. Stuff
overlaps, especially the Date and Sector boxes at the bottom. Zoom text
up in Firefox a notch or 2 if you don't see it yourself.

so I guess these are our lost customers?

Guess so, but there should be no reason for it.

--
Berg

[mark4asp]

On 25 Oct, 17:57, "Beauregard T. Shagnasty"
<a.nony.m...@ex ample.invalidwr ote:

mark4asp wrote:

All my visitors are corporate and they all have javascript enabled
otherwise they can't see the site.

Ok, I didn't notice if you said it was an intranet/corporate site or
not. Do you have control over which browsers they use? Give 'em Opera or
Firefox.

No, it's no intranet; it's a subscription web-site. I can confirm that
they're all using IE, a 60:40 split between 6 and 7. I'm not even
allowed to suggest software upgrades let alone browsers. For instance
I said it would be a good idea for them to all upgrade to MS JScript
5.7 and my manager looked aghast at that. There's no way I will be
allowed to send them all an email asking them to upgrade to Firefox or
Opera. [PS: Safari doesn't seem to work with MS Ajax.]. So I guess
there is just nothing I can do, apart from write a custom incremental
search page which may be just as slow as the current page - who can
say?