/**<br /> * 底部工具栏左右控制js<br /> * @author:tangw 2010-11-07<br /> */<br /> var RL = {};<br /> RL = {<br /> defCount:6,<br /> arWindow:[],<br /> startIndex: 0,<br /> endIndex:5,<br /> currShowW:””,<br /> up:function(){//向上<br /> var len = this.arWindow.length;<br /> if( this.endIndex == (len-1) ){<br /> this.setStyle(“f_v_w_down”, “”);<br /> }<br /> var sid = –this.startIndex;<br /> var eid = this.endIndex;<br /> if(sid==0){<br /> this.setStyle(“f_v_w_up”, “none”);<br /> }<br /> var _eid = this.arWindow[eid];<br /> this.setStyle(“f_v_window_min_”+_eid, “none”);</p> <p> var _sid = this.arWindow[sid];<br /> this.setStyle(“f_v_window_min_”+_sid, “block”);<br /> this.endIndex–;<br /> },<br /> down:function(){//向下<br /> var len = this.arWindow.length;<br /> this.setStyle(“f_v_w_up”, “block”);</p> <p> var id = this.arWindow[this.startIndex];<br /> this.setStyle(“f_v_window_min_”+id, “none”);<br /> var count = ++this.endIndex;<br /> if( count == len-1 ){<br /> this.setStyle(“f_v_w_down”,”none”);<br /> }<br /> var eid = this.arWindow[count];<br /> this.setStyle(“f_v_window_min_”+eid,”block”);<br /> this.startIndex++;<br /> },<br /> addW:function(id){<br /> var count = this.arWindow.length;<br /> if( count > (this.defCount-1)){<br /> this.setStyle(“f_v_w_down”,”block”);<br /> }<br /> this.arWindow[count] = id;<br /> },<br /> setStyle:function(id,str){<br /> var o = this.getObj(id);<br /> if(o){<br /> o.style.display = str;<br /> }<br /> },<br /> getObj:function(id){<br /> return document.getElementById(id);<br /> },<br /> getArCount:function(id){<br /> var c = 0;<br /> var len = this.getLen();<br /> for(var i=0;i<len;i++){<br /> if( id == this.arWindow[i]){<br /> c= i;<br /> break;<br /> }<br /> }<br /> return c;<br /> },<br /> getLen:function(){<br /> return this.arWindow.length;<br /> },<br /> removeAr:function(c){<br /> var len = this.getLen();<br /> this.arWindow = this.arWindow.slice(0,c).concat(this.arWindow.slice(c+1,len));<br /> },<br /> removeW:function(id){<br /> var len = this.getLen();<br /> var currIndex = this.getArCount(id);//当前位置<br /> if( len >= (this.defCount+1) ){<br /> if( currIndex<=this.startIndex ){//当前 <= 开始<br /> if( currIndex<this.startIndex ){<br /> //直接隐藏<br /> this.setStyle(“f_v_window_min_”+id, “none”);<br /> }else{<br /> var e = this.endIndex+1;<br /> //隐藏<br /> this.setStyle(“f_v_window_min_”+id, “none”);<br /> //显示<br /> var eid = this.arWindow[e];<br /> this.setStyle(“f_v_window_min_”+eid, “block”);<br /> }<br /> }else if( currIndex>=this.endIndex ){// 当前>=结束<br /> if( currIndex==this.endIndex ){<br /> var e = -1;<br /> if( currIndex==(len-1) ){<br /> if(this.startIndex>0){<br /> e = –this.startIndex;<br /> –this.endIndex;<br /> }<br /> }else{<br /> e = this.endIndex+1;<br /> }<br /> if(e!=-1){<br /> var eid = this.arWindow[e];<br /> this.setStyle(“f_v_window_min_”+eid, “block”);<br /> }<br /> }else{<br /> //直接隐藏<br /> this.setStyle(“f_v_window_min_”+id, “none”);<br /> }<br /> }else if( this.startIndex < currIndex < this.endIndex){ //开始<当前<结束<br /> var e = -1;<br /> if( this.startIndex == 0 ){<br /> e = this.endIndex+1;<br /> }else{<br /> if( this.endIndex == (len-1) ){<br /> e = –this.startIndex;<br /> –this.endIndex;<br /> }else{<br /> e = this.endIndex+1;<br /> }<br /> }<br /> this.setStyle(“f_v_window_min_”+id, “none”);<br /> if( e!=-1){<br /> var eid = this.arWindow[e];<br /> this.setStyle(“f_v_window_min_”+eid, “block”);<br /> }<br /> }<br /> //删除<br /> this.removeAr(currIndex);<br /> //控制样式<br /> this.setStyle(“f_v_w_up”,this.startIndex==0?”none”:”block”);<br /> this.setStyle(“f_v_w_down”,this.endIndex == (this.getLen()-1)?”none”:”block”);<br /> }else{<br /> this.removeAr(currIndex);<br /> }<br /> }<br /> }