Dissolving text effect

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Date added: 2007-05-12 19:05:01

IE5+ Opr7+

Dissolving text effect

Note: Modified by to run only in IE 5 (for sake of 100% compatibility).

Description: This is a great DHTML script that rotates and displays any number of messages, with a unique dissolving effect applied during each rotation. The effect is archived by first positioning a semi transparent, "spotty" image behind the message, and performing a "wipe" action over it (see documentation inside script). As seen below, the result is nothing short of spectacular...

Note that this script requires that the text to be displayed be absolutely positioned on the page. In plain English, that means you'll need to specify exactly a left and top coordinate (relative to the page) when defining where the text should appear.

Demo:

Directions

Before anything else, you'll need to first copy and upload the below image into your webpage directory:

Dissolving-text-effect.html/slidefader.gif

Step 1: Add the below to the <head> section of your page:

Select All
<style type="text/css"> .textstyle { position:absolute; left:-2000px; width:400px; font-family:Arial; font-size:20pt; font-weight:bold; text-align:center; color:FFFFFF; filter:glow(color=red,strength=2); } .coverstyle { position:absolute; left:-2000px; } </style> <script LANGUAGE="JavaScript1.2"> var message = new Array() message[0]="Welcome to " message[1]="The #1 DHTML site on the net" message[2]="Here you\'ll find free DHTML scripts and components" message[3]="All of which utilize the latest in DHTML\/ JavaScript technology" message[4]="Enjoy your stay here" message[5]="And have a wonderful Christmas Holiday!" var i_message=0 // The trick of this script is a simple gif-image // consisting of two colors: black and white dots. // The black dots are transparent. // By wipeing this gif-image back and forth over the // textmessages you get an attractive dissolving effect. // This image is called Dissolving-text-effect.html/slidefader.gif. // Configure the left and top margin of the text (pixels). var covertop=20 var coverleft=150 // Configure the size of the wipeing gif-image. // If you change the size you should create a new image too. // The coverheight also represents the height of the textzone. var coverwidth=1200 var coverheight=96 var texttop=covertop var textleft=coverleft //configure width of text effect //be sure to change the corresponding width attribute above in the <style> tag to match var textwidth=400 var textheight=coverheight var cliptop=0 var clipright=textwidth var clipbottom=coverheight var clipleft=0 var clippoints // Configure the speeds of the wipeing effect var step=40 var pause=50 var timer function init() { if (document.all) { document.all.text.style.posTop=texttop document.all.text.style.posLeft=textleft document.all.cover.style.posTop=covertop document.all.cover.style.posLeft=coverleft clipleft=0 fadeout() } } function fadeout() { if (document.all.cover.style.posLeft >=(-coverwidth+textwidth+coverleft+step)) { clipleft+=step clipright=clipleft+textwidth clippoints="rect("+cliptop+" "+clipright+" "+clipbottom+" "+clipleft+")" document.all.cover.style.clip=clippoints document.all.cover.style.posLeft-=step timer= setTimeout("fadeout()",pause) } else { clearTimeout(timer) i_message++ if (i_message>=message.length) {i_message=0} text.innerHTML=message[i_message] fadein() } } function fadein() { if (document.all.cover.style.posLeft <=coverleft) { clipleft-=step clipright=clipleft+textwidth clippoints="rect("+cliptop+" "+clipright+" "+clipbottom+" "+clipleft+")" document.all.cover.style.clip=clippoints document.all.cover.style.posLeft+=step timer= setTimeout("fadein()",pause) } else { clearTimeout(timer) init() } } </script>

Step 2: Copy the following to the <body> section of your page.

Step 3: Finally, insert the following codes into the <BODY> tag itself, like this:

As mentioned, since the script uses absolute positioning (as opposed to relative-absolute positioning). you need to manually set the coordinates of the animation. Check the documentation inside code of Step 1 to configure the required variables. Enjoy!

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