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>
<style type="text/css">
/*<![CDATA[*/
#tst {
position:relative;width:0px;background-Image:url(http://www.vicsjavascripts.org.uk/StdImages/Five.gif);
}
/*]]>*/
</style>
<script type="text/javascript">
// Animate (11-January-2010)
// 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.animate(10,800 ,5000,[10,800]);'
// where:
// A = the global referencing the script instance. (variable)
// parameter 0 = the start value. (digits, for opacity minimum 0, maximum 100)
// parameter 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(1.52K) - NO NEED to Change
function zxcAnimate(mde,obj,srt){
this.to=null;
this.obj=typeof(obj)=='object'?obj:document.getElementById(obj);
this.mde=mde.replace(/\W/g,'');
this.data=[srt||0];
return this;
}
zxcAnimate.prototype={
animate:function(srt,fin,ms,scale,c){
clearTimeout(this.to);
this.time=ms||this.time||0;
this.neg=srt<0||fin<0;
this.data=[srt,srt,fin];
this.mS=this.time*(!scale?1:Math.abs((fin-srt)/(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();
},
cng:function(){
var oop=this,ms=new Date().getTime()-this.srttime;
this.data[0]=(this.c=='s')?(this.data[2]-this.data[1])*Math.sin(this.inc*ms)+this.data[1]:(this.c=='c')?this.data[2]-(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);
}
},
apply:function(){
if (isFinite(this.data[0])){
if (this.data[0]<0&&!this.neg) this.data[0]=0;
if (this.mde!='opacity') this.obj.style[this.mde]=Math.floor(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.WebkitOpacity=obj.style.KhtmlOpacity=opc/100-.001;
}
</script>
</head>
<body>
<div id="tst" >
<table border="1">
<tr>
<td width="100" ><img src="http://www.vicsjavascripts.org.uk/StdImages/One.gif" width="50" height="50" /></td>
<td width="100"><img src="http://www.vicsjavascripts.org.uk/StdImages/Two.gif" width="50" height="50" /></td>
</tr>
<tr>
<td><img src="http://www.vicsjavascripts.org.uk/StdImages/Three.gif" width="50" height="50" /></td>
<td><img src="http://www.vicsjavascripts.org.uk/StdImages/Four.gif" width="50" height="50" /></td>
</tr>
</table>
</div>
<script type="text/javascript">
/*<![CDATA[*/
function BG(o){
var obj=document.getElementById(o.ID);
var table=obj.getElementsByTagName('TABLE')[0];
table.style.position='relative';
table.style.zIndex='10';
obj.style.width=table.offsetWidth+'px';
var imgs=table.getElementsByTagName('IMG');
this.ary=[];
for (var div,z0=0;z0<imgs.length;z0++){
div=document.createElement('DIV');
div.style.position='absolute';
div.style.visibility='hidden';
div.style.left='0px';
div.style.top='0px';
div.style.width='100%';
div.style.height=obj.offsetHeight+'px';
div.style.backgroundImage='url('+(imgs[z0].src.replace(o.SRCFrom,o.SRCTo))+')';
obj.appendChild(div);
this.addevt(imgs[z0],'mouseup','swap',z0);
zxcOpacity(div,0);
this.ary[z0]=new zxcAnimate('opacity',div,0);
}
this.ms=o.Duration||1000;
this.lst=this.ary[0];
}
BG.prototype={
swap:function(nu){
this.lst.obj.style.zIndex='0';
this.lst.animate(this.lst.data[0],0,this.ms);
this.lst=this.ary[nu];
this.lst.obj.style.zIndex='1';
this.lst.obj.style.visibility='visible';
this.lst.animate(this.lst.data[0],100,this.ms);
},
addevt:function(o,t,f,p){
var oop=this;
if (o.addEventListener) o.addEventListener(t,function(e){ return oop[f](p,e);}, false);
else if (o.attachEvent) o.attachEvent('on'+t,function(e){ return oop[f](p,e); });
}
}
new BG({
ID:'tst',
Duration:1000,
SRCFrom:'One.gif',
SRCTo:'Egypt5.jpg'
});
/*]]>*/
</script>
</body>
</html>
Background multiple-image change???
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