忘れたくないJsシリーズ

フェードインアウト

var fadeimages=new Array();

//イメージのパスを設定
fadeimages[0]=["http://www.g-rare.co.jp/img/index_main_watch_category.jpg", "http://www.g-rare.co.jp/fs/galleryrare/c/watch", "_top"];
fadeimages[1]=["http://www.g-rare.co.jp/img/index_main_jewelry_category.jpg", "http://www.g-rare.co.jp/fs/galleryrare/c/jewelry", "_top"];
var fadebgcolor="white";
////以降のスクリプトは編集不要/////////////
var fadearray=new Array();
var fadeclear=new Array();
var dom=(document.getElementById); //modern dom browsers
var iebrowser=document.all;

 

function fadeshow(theimages, fadewidth, fadeheight, borderwidth, delay, pause, displayorder){

  this.pausecheck=pause;

  this.mouseovercheck=0;

  this.delay=delay;

  this.degree=10;

  this.curimageindex=0;

  this.nextimageindex=1;

  fadearray[fadearray.length]=this;

  this.slideshowid=fadearray.length-1;

  this.canvasbase="canvas"+this.slideshowid;

  this.curcanvas=this.canvasbase+"_0";

  if (typeof displayorder!="undefined")

    theimages.sort(function() {return 0.5 - Math.random();});

  this.theimages=theimages;

  this.imageborder=parseInt(borderwidth);

  this.postimages=new Array();

  for (p=0;p<theimages.length;p++){

    this.postimages[p]=new Image();

    this.postimages[p].src=theimages[p][0];

  }

 

  var fadewidth=fadewidth+this.imageborder*2;

  var fadeheight=fadeheight+this.imageborder*2;

 

  if (iebrowser&&dom||dom) //if IE5+ or modern browsers (ie: Firefox)

    document.write('<div id="master'+this.slideshowid+'" style="position:relative;width:'+fadewidth+'px;height:'+fadeheight+'px;overflow:hidden;"><div id="'+this.canvasbase+'_0" style="position:absolute;width:'+fadewidth+'px;height:'+fadeheight+'px;top:0;left:0;filter:progid:DXImageTransform.Microsoft.alpha(opacity=10);opacity:0.1;-moz-opacity:0.1;-khtml-opacity:0.1;background-color:'+fadebgcolor+'"></div><div id="'+this.canvasbase+'_1" style="position:absolute;width:'+fadewidth+'px;height:'+fadeheight+'px;top:0;left:0;filter:progid:DXImageTransform.Microsoft.alpha(opacity=10);opacity:0.1;-moz-opacity:0.1;-khtml-opacity:0.1;background-color:'+fadebgcolor+'"></div></div>');

  else

    document.write('<div><img name="defaultslide'+this.slideshowid+'" src="'+this.postimages[0].src+'"></div>');

 

  if (iebrowser&&dom||dom) //if IE5+ or modern browsers such as Firefox

    this.startit();

  else{

    this.curimageindex++;

    setInterval("fadearray["+this.slideshowid+"].rotateimage()", this.delay);

  }

}



function fadepic(obj){

  if (obj.degree<100){

    obj.degree+=10;

    if (obj.tempobj.filters&&obj.tempobj.filters[0]){

      if (typeof obj.tempobj.filters[0].opacity=="number") //if IE6+

        obj.tempobj.filters[0].opacity=obj.degree;

      else //else if IE5.5-

        obj.tempobj.style.filter="alpha(opacity="+obj.degree+")";

    }

  else if (obj.tempobj.style.MozOpacity)

    obj.tempobj.style.MozOpacity=obj.degree/101;

  else if (obj.tempobj.style.KhtmlOpacity)

    obj.tempobj.style.KhtmlOpacity=obj.degree/100;

  else if (obj.tempobj.style.opacity&&!obj.tempobj.filters)

    obj.tempobj.style.opacity=obj.degree/101;

  }

  else{

    clearInterval(fadeclear[obj.slideshowid]);

    obj.nextcanvas=(obj.curcanvas==obj.canvasbase+"_0")? obj.canvasbase+"_0" : obj.canvasbase+"_1";

    obj.tempobj=iebrowser? iebrowser[obj.nextcanvas] : document.getElementById(obj.nextcanvas);

    obj.populateslide(obj.tempobj, obj.nextimageindex);

    obj.nextimageindex=(obj.nextimageindex<obj.postimages.length-1)? obj.nextimageindex+1 : 0;

    setTimeout("fadearray["+obj.slideshowid+"].rotateimage()", obj.delay);

  }

}

 

fadeshow.prototype.populateslide=function(picobj, picindex){

  var slideHTML="";

  if (this.theimages[picindex][1]!="") //if associated link exists for image

    slideHTML='<a href="'+this.theimages[picindex][1]+'" target="'+this.theimages[picindex][2]+'">';

  slideHTML+='<img src="'+this.postimages[picindex].src+'" border="'+this.imageborder+'px">';

  if (this.theimages[picindex][1]!="") //if associated link exists for image

    slideHTML+='</a>';

  picobj.innerHTML=slideHTML;

} 

 

fadeshow.prototype.rotateimage=function(){

  if (this.pausecheck==1) //if pause onMouseover enabled, cache object

    var cacheobj=this;

  if (this.mouseovercheck==1)

    setTimeout(function(){cacheobj.rotateimage()}, 100);

  else if (iebrowser&&dom||dom){

    this.resetit();

    var crossobj=this.tempobj=iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas);

    crossobj.style.zIndex++;

    fadeclear[this.slideshowid]=setInterval("fadepic(fadearray["+this.slideshowid+"])",50);

    this.curcanvas=(this.curcanvas==this.canvasbase+"_0")? this.canvasbase+"_1" : this.canvasbase+"_0";

  }

  else{

    var ns4imgobj=document.images['defaultslide'+this.slideshowid];

    ns4imgobj.src=this.postimages[this.curimageindex].src;

  }

  this.curimageindex=(this.curimageindex<this.postimages.length-1)? this.curimageindex+1 : 0;

}

 

fadeshow.prototype.resetit=function(){

  this.degree=10;

  var crossobj=iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas);

  if (crossobj.filters&&crossobj.filters[0]){

    if (typeof crossobj.filters[0].opacity=="number") //if IE6+

      crossobj.filters(0).opacity=this.degree;

    else //else if IE5.5-

      crossobj.style.filter="alpha(opacity="+this.degree+")";

  }

  else if (crossobj.style.MozOpacity)

    crossobj.style.MozOpacity=this.degree/101;

  else if (crossobj.style.KhtmlOpacity)

    crossobj.style.KhtmlOpacity=this.degree/100;

  else if (crossobj.style.opacity&&!crossobj.filters)

    crossobj.style.opacity=this.degree/101;

}

  

fadeshow.prototype.startit=function(){

  var crossobj=iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas);

  this.populateslide(crossobj, this.curimageindex);

  if (this.pausecheck==1){ //IF SLIDESHOW SHOULD PAUSE ONMOUSEOVER

    var cacheobj=this;

    var crossobjcontainer=iebrowser? iebrowser["master"+this.slideshowid] : document.getElementById("master"+this.slideshowid);

    crossobjcontainer.onmouseover=function(){cacheobj.mouseovercheck=1};

    crossobjcontainer.onmouseout=function(){cacheobj.mouseovercheck=0};

  }

  this.rotateimage();

}

html

<script type="text/javascript">
new fadeshow(fadeimages, 550, 220, 0, 5000, 1, "R")
</script>