Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title></title>
<script type="text/javascript">
// Animate (01-October-2009)
// by Vic Phillips http://www.vicsjavascripts.org.uk
// To progressively change the Left, Top, Width, Height or Opacity of an element over a specified period of time.
// With the ability to scale the effect time on specified minimum/maximum values
// and with three types of progression 'sin' and 'cos' and liner.
// **** Application Notes
// **** The HTML Code
//
// when moving an element the inline or class rule style position of the element should be assigned as
// 'position:relative;' or 'position:absolute;'
//
// The element would normally be assigned a unique ID name.
//
// **** Initialising the Script.
//
// The script is initialised by assigning an instance of the script to a variable.
// e.g A = new zxcAnimate('left','id1')
// where:
// A = a global variable (variable)
// parameter 0 = the mode(see Note 1). (string)
// parameter 1 = the unique ID name or element object. (string or element object)
// parameter 1 = the initial value. (digits, default = 0)
// **** Executing the Effect
//
// The effect is executed by an event call to function 'A.update([10,800],5000,[10,800]);'
// where:
// A = the global referencing the script instance. (variable)
// parameter 1 = an array defining the start and finish values of the effect. (array)
// field 0 the start value. (digits, for opacity minimum 0, maximum 100)
// field 1 the finish value. (digits, for opacity minimum 0, maximum 100)
// parameter 2 = period of time between the start and finish of the effect in milliseconds. (digits or defaults to previous or 0(on first call) milliSeconds)
// parameter 3 = (optional) to scale the effect time on a specified minimum/maximum. (array, see Note 3)
// field 0 the minimum value. (digits)
// field 1 the maximum value. (digits)
// parameter 3 = (optional) the type of progression, 'sin', 'cos' or 'liner'. (string, default = 'liner')
// 'sin' progression starts fast and ends slow.
// 'cos' progression starts slow and ends fast.
//
// Note 1: Examples modes: 'left', 'top', 'width', 'height', 'opacity.
// Note 2: The default units(excepting opacity) are 'px'.
// For hyphenated modes, the first character after the hyphen must be upper case, all others lower case.
// Note 3: The scale is of particular use when re-calling the effect
// in mid progression to retain an constant rate of progression.
// Note 4: The current effect value is recorded in A.data[0].
// Note 5: A function may be called on completion of the effect by assigning the function
// to the animator intance property .Complete.
// e.g. [instance].Complete=function(){ alert(this.data[0]); };
//
// **** Functional Code(1.58K) - NO NEED to Change
function zxcAnimate(mde,obj,fin){
this.to=null;
this.obj=typeof(obj)=='object'?obj:document.getElementById(obj);
this.mde=mde.replace(/\W/g,'');
this.data=[fin||0];
return this;
}
zxcAnimate.prototype.update=function(srtfin,ms,scale,c){
clearTimeout(this.to);
this.time=ms||this.time||0;
this.data=[srtfin[0],srtfin[0],srtfin[1]];
this.mS=this.time*(!scale?1:Math.abs((srtfin[1]-srtfin[0])/(scale[1]-scale[0])));
this.c=typeof(c)=='string'?c.charAt(0).toLowerCase():this.c?this.c:'';
this.inc=Math.PI/(2*this.mS);
this.srttime=new Date().getTime();
this.cng();
}
zxcAnimate.prototype.cng=function(){
var oop=this,ms=new Date().getTime()-this.srttime;
this.data[0]=(this.c=='s')?Math.floor((this.data[2]-this.data[1])*Math.sin(this.inc*ms)+this.data[1]):(this.c=='c')?(this.data[2])-Math.floor((this.data[2]-this.data[1])*Math.cos(this.inc*ms)):(this.data[2]-this.data[1])/this.mS*ms+this.data[1];
this.apply();
if (ms<this.mS) this.to=setTimeout(function(){oop.cng()},10);
else {
this.data[0]=this.data[2];
this.apply();
if (this.Complete) this.Complete(this);
}
}
zxcAnimate.prototype.apply=function(){
if (isFinite(this.data[0])){
if (this.mde!='left'&&this.mde!='top'&&this.data[0]<0) this.data[0]=0;
if (this.mde!='opacity') this.obj.style[this.mde]=this.data[0]+'px';
else zxcOpacity(this.obj,this.data[0]);
}
}
function zxcOpacity(obj,opc){
if (opc<0||opc>100) return;
obj.style.filter='alpha(opacity='+opc+')';
obj.style.opacity=obj.style.MozOpacity=obj.style.KhtmlOpacity=opc/100-.001;
}
</script>
<script type="text/javascript">
/*<![CDATA[*/
function MultiFade(id,cls,from,to,ms){
var obj=document.getElementById(id);
var fade=zxcByClassName(cls);
this.ary=[];
for (var z0=0;z0<fade.length;z0++){
this.ary[z0]=new zxcAnimate('opacity',fade[z0],from);
zxcOpacity(fade[z0],from);
}
this.from=from||100;
this.to=to||100;
this.ms=ms||1000;
this.addevt(obj,'mouseover','Fade',true);
this.addevt(obj,'mouseout','Fade',false);
}
MultiFade.prototype.Fade=function(e,ud){
for (var z0=0;z0<this.ary.length;z0++){
this.ary[z0].update([this.ary[z0].data[0],ud?this.to:this.from],this.ms);
}
}
MultiFade.prototype.addevt=function(o,t,f,p){
var oop=this;
if (o.addEventListener) o.addEventListener(t,function(e){ return oop[f](e,p);}, false);
else if (o.attachEvent) o.attachEvent('on'+t,function(e){ return oop[f](e,p); });
else {
var prev=o['on'+t];
if (prev) o['on'+t]=function(e){ prev(e); oop[f](e,p); };
else o['on'+t]=o[f];
}
}
function zxcByClassName(nme,el,tag){
if (typeof(el)=='string') el=document.getElementById(el);
el=el||document;
for (var tag=tag||'*',reg=new RegExp('\\b'+nme+'\\b'),els=el.getElementsByTagName(tag),ary=[],z0=0; z0<els.length;z0++){
if(reg.test(els[z0].className)) ary.push(els[z0]);
}
return ary;
}
/*]]>*/
</script></head>
<body>
<img id="img1" class="fade2" src="http://www.vicsjavascripts.org.uk/StdImages/One.gif" width="50" height="50" />
<img id="img2" class="fade1 fade2" src="http://www.vicsjavascripts.org.uk/StdImages/Two.gif" width="50" height="50" />
<br />
<img id="img3" class="fade2" src="http://www.vicsjavascripts.org.uk/StdImages/Three.gif" width="50" height="50" />
<img id="img4" class="fade2" src="http://www.vicsjavascripts.org.uk/StdImages/Four.gif" width="50" height="50" />
<img id="img5" class="fade1 fade 2" src="http://www.vicsjavascripts.org.uk/StdImages/Five.gif" width="50" height="50" />
<img id="img6" class="fade2" src="http://www.vicsjavascripts.org.uk/StdImages/Six.gif" width="50" height="50" />
<img id="img7" class="fade2" src="http://www.vicsjavascripts.org.uk/StdImages/Seven.gif" width="50" height="50" />
<script type="text/javascript">
/*<![CDATA[*/
new MultiFade('img1','fade1',50,100,1000);
new MultiFade('img2','fade2',50,100,500);
/*]]>*/
</script>
</body>
</html>
Junior Coders
Gradual Element fader for multiple images
Originally Posted by davelf
sorry don't really understand what did you mean?
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