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Re: Newbie: speed issue? [message #16675 is a reply to message #16518]

Wed, 11 February 2004 22:24

Darknean

Messages: 1
Registered: February 2004

Karma:

Junior Member

I had problem once with javascript where a looping was preventing IE to continue normally. Javascript waits 'til the loop 'for' is done. Maybe in this case it would be more adequat to use setTimeout instead.

EDIT
=====================================================
Ok! I tried some alternatives and here what my png part in lib.js looks like:

Quote:

// This code below is used to make PNG's to work in IE.
// The code comes from youngpup.net. Thanks youngpup!
if (navigator.platform == "Win32" && navigator.appName == "Microsoft Internet Explorer" && window.attachEvent) {
rslt = navigator.appVersion.match(/MSIE (\d+\.\d+)/, '');
itsAllGood = (rslt != null && Number(rslt[1]) >= 5.5);

if (itsAllGood) {
// EDIT: Commented by S�bastien Nadon
// February 11, 2004
//document.writeln('<style type="text/css">img { visibility:hidden; } </style>');
window.attachEvent("onload", fnLoadPngs);
}
}

//==================================================
// EDITED BY S�bastien Nadon
// February 11, 2004
//--------------------------------------------------
// Using 'while' instead of 'for' to better
// avoid the temporary inactivity of IE
//==================================================
function fnLoadPngs()
{
var i = document.images.length;

while( img = document.images[ --i ] )
{
if( img.src.match(/\.png$/i) != null )
{
img.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + img.src + "', sizingMethod='image')";
img.src = "blank.gif";
}
}
}

/* Test with setTimeout
** Error: Object Expected
function fnLoadPngs()
{
fnLoadPngsSmoothly( document.images.length -1 );
}

function fnLoadPngsSmoothly( i )
{
if( img = document.images[ i ] )
{
if( img.src.match(/\.png$/i) != null )
{
var src = img.src;
img.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "', sizingMethod='image')";
img.src = "blank.gif";
}

setTimeout( "fnLoadPngsSmoothly( --i );", 30 );
}
}
*/

I hope Ilia can check this because I'm running out of time Sad

[Updated on: Wed, 11 February 2004 22:58]

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[Message index]

		Newbie: speed issue? By: blueview on Tue, 03 February 2004 18:29
		Re: Newbie: speed issue? By: blueview on Tue, 03 February 2004 20:01
		Re: Newbie: speed issue? By: blueview on Tue, 03 February 2004 22:31
		Re: Newbie: speed issue? By: Ilia on Wed, 04 February 2004 00:58
		Re: Newbie: speed issue? By: blueview on Wed, 04 February 2004 09:09
		Re: Newbie: speed issue? By: blueview on Wed, 04 February 2004 18:27
		Re: Newbie: speed issue? By: firepages on Thu, 05 February 2004 05:09
		Re: Newbie: speed issue? By: blueview on Thu, 05 February 2004 09:02
		Re: Newbie: speed issue? By: firepages on Thu, 05 February 2004 14:23
		Re: Newbie: speed issue? By: blueview on Thu, 05 February 2004 15:41
		Re: Newbie: speed issue? By: firepages on Thu, 05 February 2004 16:14
		Re: Newbie: speed issue? By: blueview on Thu, 05 February 2004 16:30
		Re: Newbie: speed issue? By: Ilia on Mon, 09 February 2004 19:02
		Re: Newbie: speed issue? By: Darknean on Wed, 11 February 2004 22:24
		Re: Newbie: speed issue? By: Peter Verrill on Sat, 10 April 2004 11:30
		Re: Newbie: speed issue? By: mocara on Sat, 10 April 2004 21:25

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