// 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.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 ); width: 100%; height: 100%";   
			}   
			//   
			var ulStyle = "margin:0;width:"+w+"px;position:absolute;z-index:999;right:5px;FILTER:Alpha(Opacity=30,FinishOpacity=90, Style=1);overflow: hidden;bottom:-1px;height:16px; border-right:1px solid #fff;";   
			//   
			var liStyle = "margin:0;list-style-type: none; margin:0;padding:0; float:right;";   
			//   
			var baseSpacStyle = "clear:both; display:block; width:23px;line-height:18px; font-size:12px; FONT-FAMILY:'宋体';opacity: 0.6;";   
			baseSpacStyle += "border:1px solid #fff;border-right:0;border-bottom:0;";   
			baseSpacStyle += "color:#fff;text-align:center; cursor:pointer; ";   
			//   
			var ulHTML = "";   
			for(var i = this._items.length -1; i >= 0; i--){   
					var spanStyle = "";   
					if( i==this._index ){   
							spanStyle = baseSpacStyle + "background:#ff0000;";   
					} else {                                   
							spanStyle = baseSpacStyle + "background:#000;";   
					}   
					ulHTML += "<li 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 += "</li>";   
			}   
			//   
			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 = w + "px";   
			link.style.height = h + "px";   
			link.style.background = 'url(' + this._items[0].img + ') no-repeat center top';   
			//   
			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 top';   
			//   
			var liStyle = "margin:0;list-style-type: none; margin:0;padding:0; float:right;";   
			var baseSpacStyle = "clear:both; display:block; width:23px;line-height:18px; font-size:12px; FONT-FAMILY:'宋体'; opacity: 0.6;";   
			baseSpacStyle += "border:1px solid #fff;border-right:0;border-bottom:0;";   
			baseSpacStyle += "color:#fff;text-align:center; cursor:pointer; ";   
			var ulHTML = "";   
			for(var i = this._items.length -1; i >= 0; i--){   
					var spanStyle = "";   
					if( i==this._index ){   
							spanStyle = baseSpacStyle + "background:#ff0000;";   
					} else {                                   
							spanStyle = baseSpacStyle + "background:#000;";   
					}   
					ulHTML += "<li 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 += "</li>";   
			}   
			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";   
	}   
}

//init
$(document).ready(function(){
	PImgPlayer.addItem( "新波绿积极参与墨西哥湾漏油处理", "about_6.html", "images/Indexbg1.jpg");   
	PImgPlayer.addItem( "新波绿石油泄露处理使用指南", "about_7.html", "images/Indexbg2.jpg");
	PImgPlayer.addItem( "新波绿消毒液", "products_21.html", "images/Indexbg3.jpg");   
	PImgPlayer.addItem( "新波绿航空及精密部件清洗液", "products_2_7.html", "images/Indexbg4.jpg");   
	PImgPlayer.init( "slider", 910, 500 );
});