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Thread: Javascript fadeOut Div problem

  1. #1
    Join Date
    Feb 2011
    Posts
    1

    Javascript fadeOut Div problem

    What I'm trying to do is get a 'loading' div to gradually fade out after 3 secs.
    Here's what I came up with so far with all internet sources I could find...

    Code:
    <script language="JavaScript">
    window.onload=setTimeout("fadeDiv()", 3000);
    
    function fadeDiv() {
    new Effect.Opacity("loading", {duration:1.5, from:0.9, to:0.0});
    }
    </script>
    But obviously, this doesn't work. Can anyone help me with this problem?

  2. #2
    Join Date
    Jun 2004
    Location
    Portsmouth UK
    Posts
    2,681
    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 (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]=Math.floor(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]=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="example" style="position:absolute;left:550px;top:120px;width:248px;height:122px;border:solid red 1px;background-Color:#FFCC66;" ></div>
    <script type="text/javascript">
    /*<![CDATA[*/
    
    function Fade(id,ms) {
     var  oop=new zxcAnimate('opacity',id);
     oop.animate(100,0,ms);
    }
    
    setTimeout(function(){ Fade('example',1000); },3000);
    /*]]>*/
    </script>
    </body>
    
    </html>
    Vic

    God loves you and will never love you less.

    http://www.vicsjavascripts.org/Home.htm
    If my post has been useful please donate to http://www.operationsmile.org.uk/

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