Hallo,
Ik wil dus een bewegende regenboog kleur text toevoegen op mijn forum. Het probleem is echter dat het scriptje wat ik gebruik, met ID's werkt, en dat is dus niet optimaal gezien meerdere users de regenboog kleur text krijgen, en gezien hun meerdere keren op één pagina gezien zullen worden.
Heb veel gekloot met het scriptje maar het is toch iets lastiger als ik gehoopt had (mijn javascript is belabberd).
Dit is de functie wat de regenboog kleur maakt:
JavaScript
<script type="text/javascript">
<!-- Begin
/* This script and many more are available free online at
The JavaScript Source!! http://javascript.internet.com
Created by: HaganeNoKokoro :: http://tinyurl.com/buvp9 */
/*
* Notes on hue
*
* This script uses hue rotation in the following manner:
* hue=0 is red (#FF0000)
* hue=60 is yellow (#FFFF00)
* hue=120 is green (#00FF00)
* hue=180 is cyan (#00FFFF)
* hue=240 is blue (#0000FF)
* hue=300 is magenta (#FF00FF)
* hue=360 is hue=0 (#FF0000)
*
* Notes on the script
*
* This script should function in any browser that supports document.getElementById
* It has been tested in Netscape7, Mozilla Firefox 1.0, and Internet Explorer 6
*
* Accessibility
*
* The script does not write the string out, but rather takes it from an existing
* HTML element. Therefore, users with javascript disabled will not be adverely affected.
* They just won't get the pretty colors.
*/
/*
* splits par.firstChild.data into 1 span for each letter
* ARGUMENTS
* span - HTML element containing a text node as the only element
*/
function toSpans(span) {
var str=span.firstChild.data;
var a=str.length;
span.removeChild(span.firstChild);
for(var i=0; i<a; i++) {
var theSpan=document.createElement("SPAN");
theSpan.appendChild(document.createTextNode(str.charAt(i)));
span.appendChild(theSpan);
}
}
/*
* creates a rainbowspan object
* whose letters will be colored [deg] degrees of hue
* ARGUMENTS
* span - HTML element to apply the effect to (text only, no HTML)
* hue - what degree of hue to start at (0-359)
* deg - how many hue degrees should be traversed from beginning to end of the string (360 => once around, 720 => twice, etc)
* brt - brightness (0-255, 0 => black, 255 => full color)
* spd - how many ms between moveRainbow calls (less => faster)
* hspd - how many hue degrees to move every time moveRainbow is called (0-359, closer to 180 => faster)
*/
function RainbowSpan(span, hue, deg, brt, spd, hspd) {
this.deg=(deg==null?360:Math.abs(deg));
this.hue=(hue==null?0:Math.abs(hue)%360);
this.hspd=(hspd==null?3:Math.abs(hspd)%360);
this.length=span.firstChild.data.length;
this.span=span;
this.speed=(spd==null?50:Math.abs(spd));
this.hInc=this.deg/this.length;
this.brt=(brt==null?255:Math.abs(brt)%256);
this.timer=null;
toSpans(span);
this.moveRainbow();
}
/*
* sets the colors of the children of [this] as a hue-rotating rainbow starting at this.hue;
* requires something to manage ch externally
* I had to make the RainbowSpan class because M$IE wouldn't let me attach this prototype to [Object]
*/
RainbowSpan.prototype.moveRainbow = function() {
if(this.hue>359) this.hue-=360;
var color;
var b=this.brt;
var a=this.length;
var h=this.hue;
for(var i=0; i<a; i++) {
if(h>359) h-=360;
if(h<60) { color=Math.floor(((h)/60)*b); red=b;grn=color;blu=0; }
else if(h<120) { color=Math.floor(((h-60)/60)*b); red=b-color;grn=b;blu=0; }
else if(h<180) { color=Math.floor(((h-120)/60)*b); red=0;grn=b;blu=color; }
else if(h<240) { color=Math.floor(((h-180)/60)*b); red=0;grn=b-color;blu=b; }
else if(h<300) { color=Math.floor(((h-240)/60)*b); red=color;grn=0;blu=b; }
else { color=Math.floor(((h-300)/60)*b); red=b;grn=0;blu=b-color; }
h+=this.hInc;
this.span.childNodes[i].style.color="rgb("+red+", "+grn+", "+blu+")";
}
this.hue+=this.hspd;
}
// End -->
</script>En dit is het stukje wat de tekst oproept:
Code
<script type="text/javascript">
var r1=document.getElementById("r1"); //get span to apply rainbow
var myRainbowSpan=new RainbowSpan(r1, 0, 360, 255, 50, 18); //apply static rainbow effect
myRainbowSpan.timer=window.setInterval("myRainbowSpan.moveRainbow()", myRainbowSpan.speed);
</script>Ik heb dingen geprobeerd als:
JavaScript
var x = document.getElementsByClassName("rainbow");
for (var i = 0; i < x.length; i++)
{
var myRainbowSpan=new RainbowSpan(x[i], 0, 360, 255, 50, 18); //apply static rainbow effect
myRainbowSpan.timer=window.setInterval("myRainbowSpan.moveRainbow()", myRainbowSpan.speed);
}Maar dat werkte allemaal niet.
Zou iemand mij willen helpen? Alvast bedankt!
