/**************************************************   
名称: 图片轮播类   
创建时间: 2007-11-12   
示例:   
        页面中已经存在名为imgPlayer(或者别的ID也行)的节点.   
        PImgPlayer1.addItem( "test", "http://kxgw8.cn", "http://kxgw8.cn/images/wy.jpg");   
        PImgPlayer1.addItem( "test2", "http://kxgw8.cn", "http://kxgw8.cn/images/wy.jpg");   
        PImgPlayer1.addItem( "test3", "http://kxgw8.cn", "http://kxgw8.cn/images/wy.jpg");   
        PImgPlayer1.init( "imgPlayer", 200, 230 );   
备注:   
        适用于一个页面只有一个图片轮播的地方.   
***************************************************/   
var PImgPlayer1 = {   
        _timer : null,   
        _items : [],   
        _container : null,
        _lnkcontainer : null,
        _txtLayer : null,
        _index : 0,   
        _imgs : [],
        _txtcontent : [],
        intervalTime : 3500,        //轮播间隔时间   
        init : function( objID, w, h, time ){   
                this.intervalTime = time || this.intervalTime;
                this._container = document.getElementById( objID );
                this._lnkcontainer = document.getElementById( objID+"1" );
                this._txtLayer = document.getElementById( objID+"2");
                //this._ 
                this._container.style.display = "block";   
                this._container.style.width = w + "px";   
                this._container.style.height = h + "px";   
                this._container.style.position = "relative";   
                this._container.style.overflow = "hidden";   
                //this._container.style.border = "1px solid #fff";   
                var linkStyle = "display: block; TEXT-DECORATION: none;";   
                if( document.all ){   
                        linkStyle += "FILTER:";   
                        linkStyle += "progid:DXImageTransform.Microsoft.Barn(duration=0.5, motion='out', orientation='vertical') ";   
                        linkStyle += "progid:DXImageTransform.Microsoft.Barn ( duration=0.5,motion='out',orientation='horizontal') ";   
                        linkStyle += "progid:DXImageTransform.Microsoft.Blinds ( duration=0.5,bands=10,Direction='down' )";   
                        linkStyle += "progid:DXImageTransform.Microsoft.CheckerBoard()";   
                        linkStyle += "progid:DXImageTransform.Microsoft.Fade(duration=0.5,overlap=0)";   
                        linkStyle += "progid:DXImageTransform.Microsoft.GradientWipe ( duration=1,gradientSize=1.0,motion='reverse' )";   
                        linkStyle += "progid:DXImageTransform.Microsoft.Inset ()";   
                        linkStyle += "progid:DXImageTransform.Microsoft.Iris ( duration=1,irisStyle=PLUS,motion=out )";   
                        linkStyle += "progid:DXImageTransform.Microsoft.Iris ( duration=1,irisStyle=PLUS,motion=in )";   
                        linkStyle += "progid:DXImageTransform.Microsoft.Iris ( duration=1,irisStyle=DIAMOND,motion=in )";   
                        linkStyle += "progid:DXImageTransform.Microsoft.Iris ( duration=1,irisStyle=SQUARE,motion=in )";   
                        linkStyle += "progid:DXImageTransform.Microsoft.Iris ( duration=0.5,irisStyle=STAR,motion=in )";   
                        linkStyle += "progid:DXImageTransform.Microsoft.RadialWipe ( duration=0.5,wipeStyle=CLOCK )";   
                        linkStyle += "progid:DXImageTransform.Microsoft.RadialWipe ( duration=0.5,wipeStyle=WEDGE )";   
                        linkStyle += "progid:DXImageTransform.Microsoft.RandomBars ( duration=0.5,orientation=horizontal )";   
                        linkStyle += "progid:DXImageTransform.Microsoft.RandomBars ( duration=0.5,orientation=vertical )";   
                        linkStyle += "progid:DXImageTransform.Microsoft.RandomDissolve ()";   
                        linkStyle += "progid:DXImageTransform.Microsoft.Spiral ( duration=0.5,gridSizeX=16,gridSizeY=16 )";   
                        linkStyle += "progid:DXImageTransform.Microsoft.Stretch ( duration=0.5,stretchStyle=PUSH )";   
                        linkStyle += "progid:DXImageTransform.Microsoft.Strips ( duration=0.5,motion=rightdown )";   
                        linkStyle += "progid:DXImageTransform.Microsoft.Wheel ( duration=0.5,spokes=8 )";   
                        linkStyle += "progid:DXImageTransform.Microsoft.Zigzag ( duration=0.5,gridSizeX=4,gridSizeY=40 );";   
                }   
                //   
                var ulStyle = "";//"margin:0;width:"+w+"px;position:absolute;z-index:999;right:0px;overflow: hidden;bottom:1px;height:19px; border-right:1px solid #fff;";   
                var ulHTML = "";   
                for(var i = this._items.length -1; i >= 0; i--){
                        var spanStyle = "";   
                        if( i==this._index ){   
                                spanStyle = "on";
                        } else {                                   
                                spanStyle = "off";   
                        }   
                        ulHTML += "<li>";   
                        ulHTML += "<span onmouseover=\"PImgPlayer1.mouseOver(this);\" onmouseout=\"PImgPlayer1.mouseOut(this);\" class=\""+spanStyle+"\" onclick=\"PImgPlayer1.play("+i+");return false;\" herf=\"javascript:;\" title=\"" + this._items[i].title + "\">" + (i+1) + "</span>";   
                        ulHTML += "</li>";
                }
                var html = "<div><a href=\""+this._items[this._index].link+"\" title=\""+this._items[this._index].title+"\" target=\"_blank\" style=\""+linkStyle+"\"></a></div>";   
                var html1 = "<ul style=\""+ulStyle+"\">"+ulHTML+"</ul>";
                this._container.innerHTML = html;
                this._lnkcontainer.innerHTML = html1;
                this._txtLayer.innerHTML = "<div class=\"show-center\"><dl><dt style=\"BACKGROUND: url(/skins/images/showinco1.jpg) no-repeat\;\">"+this._txtcontent[0].title+"</dt><dd>"+this._txtcontent[0].intro+"<dd></dl></div>";;
                var link = this._container.getElementsByTagName("a")[0];
                link.style.background = 'url(' + this._items[0].img + ') no-repeat center center';
                this._timer = setInterval( "PImgPlayer1.play()", this.intervalTime );   
        },   
        addItem : function( _title, _link, _imgURL, _txtContent, _Intro ){   
                this._items.push ( {title:_title, link:_link, img:_imgURL } );   
                var img = new Image();
                img.src = _imgURL;
                this._imgs.push( img );
                this._txtcontent.push ( {title:_txtContent, intro:_Intro} );
        },
        play : function( index ){
                if( index!=null ){
                        this._index = index;
                        clearInterval( this._timer );   
                        this._timer = setInterval( "PImgPlayer1.play()", this.intervalTime );   
                } else {   
                        this._index = this._index<this._items.length-1 ? this._index+1 : 0;   
                }   
                var link = this._container.getElementsByTagName("A")[0];           
                if(link.filters){   
                        var ren = Math.floor(Math.random()*(link.filters.length));
                        link.filters[ren].Apply();   
                        link.filters[ren].play();   
                }   
                link.href = this._items[this._index].link;   
                link.title = this._items[this._index].title;   				
                link.style.background = 'url(' + this._items[this._index].img + ') no-repeat center center';  
                this._txtLayer.innerHTML = "<div class=\"show-center\"><dl><dt style=\"BACKGROUND: url(/skins/images/showinco"+(this._index+1)+".jpg) no-repeat\;\">"+this._txtcontent[this._index].title+"</dt><dd>"+this._txtcontent[this._index].intro+"<dd></dl></div>"; 
                var ulHTML = "";
                for(var i = this._items.length -1; i >= 0; i--){   
                        var spanStyle = "";   
                        if( i==this._index ){   
                                spanStyle = "on";   
                        } else {
                                spanStyle = "off";    
                        }   
                        ulHTML += "<li>";   
                        ulHTML += "<span onmouseover=\"PImgPlayer1.mouseOver(this);\" onmouseout=\"PImgPlayer1.mouseOut(this);\" class=\""+spanStyle+"\" onclick=\"PImgPlayer1.play("+i+");return false;\" herf=\"javascript:;\" title=\"" + this._items[i].title + "\">" + (i+1) + "</span>";   
                        ulHTML += "</li>";   
                }   
                this._lnkcontainer.getElementsByTagName("UL")[0].innerHTML = ulHTML;
        },   
        mouseOver : function(obj){
        },   
        mouseOut : function(obj){   
        }   
}