// JavaScript Document
var PImgPlayer = {
	_timer : null,
	_items : [],
	_container : null,
	_index : 0,
	_imgs : [],
	intervalTime : 5000,	//轮播间隔时间
	init : function( objID, w, h, time ){
		this.intervalTime = time || this.intervalTime;
		this._container = document.getElementById( objID );
		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.Zigzag ( duration=0.5,gridSizeX=4,gridSizeY=40 ); width: 100%; height: 100%";
		}
		//
		var ulStyle = "margin-left:708px!important;margin-left:728px;margin-bottom:0px;margin-top:0px;width:28px!important;width:48px;height:90px;position:absolute;z-index:999;FILTER:Alpha(Opacity=30,FinishOpacity=60, Style=1);bottom:0px; border:1px solid #cccccc;";
		//
		var liStyle = "list-style-type: none;float:left;  ";
		//
		var baseSpacStyle = "width:22px;height:22px;font-size:12px; FONT-FAMILY:'Arial';font-weight:bold;opacity: 0.6;";
		baseSpacStyle += "border:1px solid #fff;border-right:0;";
		baseSpacStyle += "color:#fff;text-align:center; cursor:pointer;padding-left:2px;padding-top:1px;";
		//
		var ulHTML = "";
		var ii=1;
		for(var i = 0; i <= this._items.length -1; i++){
			var spanStyle = "";
			if (ii % 2!=0){
				ulHTML +="<div style=''></div>";
				//baseSpacStyle +="margin-right:30px;margin-top:0px;" 
			}
			else {
			   //baseSpacStyle +="margin-right:655px;margin-top:0px;"
			}
			ii=ii+1;
			if( i==this._index ){
				spanStyle = baseSpacStyle + "background:#1972da;";
			} else {				
				spanStyle = baseSpacStyle + "background:#666666;";
			}					
			ulHTML += "<span style=\""+liStyle+"\">";
			ulHTML += "<span onmouseover=\"PImgPlayer.mouseOver(this);\" onmouseout=\"PImgPlayer.mouseOut(this);\" style=\""+spanStyle+"\" onclick=\"PImgPlayer.play("+i+");return false;\" herf=\"javascript:;\" title=\"" + this._items[i].title + "\">" + (i+1) + "</span>";
			ulHTML += "</span>";			
		}
		//
		var html = "<a href=\""+this._items[this._index].link+"\" title=\""+this._items[this._index].title+"\" target=\"_blank\" style=\""+linkStyle+"\"></a><ul style=\""+ulStyle+"\">"+ulHTML+"</ul>";
		this._container.innerHTML = html;
		var link = this._container.getElementsByTagName("A")[0];	
		link.style.width =  "728px";
		if( navigator.userAgent.indexOf("MSIE") == -1)
		link.style.width =  "708px";
		link.style.height = "90px";
		link.style.border = "1px solid #CCCCCC";
		link.style.background = 'url(' + this._items[0].img + ') no-repeat center center';
		//
		this._timer = setInterval( "PImgPlayer.play()", this.intervalTime );
	},
	addItem : function( _title, _link, _imgURL ){
		this._items.push ( {title:_title, link:_link, img:_imgURL } );
		var img = new Image();
		img.src = _imgURL;
		this._imgs.push( img );
	},
	play : function( index ){
		if( index!=null ){
			this._index = index;
			clearInterval( this._timer );
			this._timer = setInterval( "PImgPlayer.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';
		//
		var liStyle = "list-style-type: none; float:left;";
		var baseSpacStyle = "width:22px;height:22px;font-size:12px; FONT-FAMILY:'Arial';font-weight:bold; opacity: 0.6;";
		baseSpacStyle += "border:1px solid #fff;border-right:0;";
		baseSpacStyle += "color:#fff;text-align:center; cursor:pointer;padding-left:2px;padding-top:1px; ";
		var ulHTML = "";
		var ii=1;
		for(var i = 0; i <= this._items.length -1; i++){
			var spanStyle = "";		
			if (ii % 2!=0){
				ulHTML +="<div style=''></div>";
				//baseSpacStyle +="margin-right:30px;margin-top:0px;" 
			}
			else {
			   //baseSpacStyle +="margin-right:655px;margin-top:0px;"
			}
			ii=ii+1;
			if( i==this._index ){
				spanStyle = baseSpacStyle + "background:#1972da;";
			} else {				
				spanStyle = baseSpacStyle + "background:#666666;";
			}
			ulHTML += "<span style=\""+liStyle+"\">";
			ulHTML += "<span onmouseover=\"PImgPlayer.mouseOver(this);\" onmouseout=\"PImgPlayer.mouseOut(this);\" style=\""+spanStyle+"\" onclick=\"PImgPlayer.play("+i+");return false;\" herf=\"javascript:;\" title=\"" + this._items[i].title + "\">" + (i+1) + "</span>";
			ulHTML += "</span>";			
		}
		this._container.getElementsByTagName("UL")[0].innerHTML = ulHTML;	
	},
	mouseOver : function(obj){
		var i = parseInt( obj.innerHTML );
		if( this._index!=i-1){
			obj.style.color = "#ff0000";
		}
	},
	mouseOut : function(obj){
		obj.style.color = "#fff";
	}
}