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Question #78

The GeeWizz scroller seems to be running slow when viewing in Netscape 6.x (NN6.x) and 7.x (NN7.x) or Mozilla browsers. Is there anything I can do to speed it up?

The Answer

Prepared Apr. 2002 by Gerry Jacobsen, PVII

Netscape 6.x, Netscape 7.x adn Mozilla browsers still have many rendering flaws that prevent it from displaying DHTML effects properly. These problems can cause a slower scrolling rate than you would see in other browsers like IE4+, Safari or NN4.x.

You can minimize this problem by assuring that your .gif images are kept under 16 colors or using .jpg images instead.

When Netscape/Mozilla eventually fixes these problems the scroller will function perfectly, however, in the meantime, you can make a small modification to the GeeWizz code that adds a special Netscape/Mozilla workaround that will speed up the scrolling performance on Win2k and WinXP systems:

1) In the P7_runScroller function, locate this line (the 3rd line of the script):'

if(navigator.userAgent.indexOf("NT")>-1......){slw=false;}

2) Place your cursor at the end of this line and hit the Enter key to create a new line.

3) Copy and paste this code into the new line:

if(parseInt(navigator.appVersion)>4&&navigator.userAgent.indexOf("Mozilla")>-1){slw=true;}

4) Your modified code should now look like this:

.....
  if(navigator.userAgent.indexOf("NT")>-1 ||......){slw=false;}
  if(parseInt(navigator.appVersion)>4&&navigator.userAgent.indexOf("Mozilla")>-1){slw=true;}
  if((g=MM_findObj(co))!=null){if(g.p7Scroll){
.....

Be sure that this line of code is on one line, no line wraps.

The scroller will now run at a slightly faster rate in Netscape/Mozilla when viewed on Win2k or WinXP systems. Please bear in mind that this is a "temporary" workaround to address the flaws in the Mozilla rendering engine. This should be removed when, or if, Mozilla eventually fixes these flaws in future versions.

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