var Timer;
    var _move;
    var _jump
        
    _move = 0;
    _jump = 0;

    function moveRight(){
        
        var _page;
       
        _page = eval( document.getElementById('EventPage').innerHTML);
        
        clearTimeout( Timer);
        
        if( _jump == 1) document.getElementById('_MoveRight').style.display = 'none';

        if( _jump == _page) document.getElementById('_MoveLeft').style.display = 'block';

        _jump --;

        scrollRight();
        
    }
    
    function scrollRight(){

        _move += 97;
        
        document.getElementById('MainBody').scrollLeft -= 97;  

        Timer = setTimeout( 'scrollRight()', 30);  

        if( _move == 970){
        
            _move = 0;
            
            clearTimeout( Timer);
        
        }
        
    }
    
    function moveLeft(){

        var _page;
       
        _page = eval( document.getElementById('EventPage').innerHTML);

        clearTimeout( Timer);

        _jump ++;

        if( _jump == 1) document.getElementById('_MoveRight').style.display = 'block';

        if( _jump == _page) document.getElementById('_MoveLeft').style.display = 'none';

        scrollLeft();
      
    }
    
    function scrollLeft(){

        _move += 97;
        
        document.getElementById('MainBody').scrollLeft += 97;  

        Timer = setTimeout( 'scrollLeft()', 30);  

        if( _move == 970){

            _move = 0;
            
            clearTimeout( Timer);
        
        }
        
    }

    function swapClipBox( n){
        
        if( n == 2){
        
            document.getElementById('ClipRelate').style.display = 'none';
            document.getElementById('ClipInfo').style.display = 'block';
            document.getElementById('ClipShare').style.display = 'none';
            
        }
        
        else if( n == 3){
            
            document.getElementById('ClipRelate').style.display = 'none';
            document.getElementById('ClipInfo').style.display = 'none';
            document.getElementById('ClipShare').style.display = 'block';
            
        }
        
        else{
            
            document.getElementById('ClipRelate').style.display = 'block';
            document.getElementById('ClipInfo').style.display = 'none';
            document.getElementById('ClipShare').style.display = 'none';
            
        }        
        
    }

    function getPoint( _object){
        
        var point;
        
        point = _object.offsetTop;
        
        if( _object.offsetParent != null) point += getPoint( _object.offsetParent);
        
        return point;

    }

    function Point( _left, _top){
    
　　    this.left = _left;
　　    this.top = _top; 
        
    }
    
    function GetPosition( _object){
        
        var iCurrent = new Point( _object.offsetLeft, _object.offsetTop);
        var iWork = new Point( 0, 0);
        
        if( _object.offsetParent.tagName != 'BODY'){
          
            iWork = GetPosition( _object.offsetParent);  
            
            iCurrent.left += iWork.left;
            iCurrent.top += iWork.top;
            
        }
        
        return iCurrent;
        
    }   

    function Copy( element){ 

        var syntax;
    
    	syntax = eval( element);
    
        if( syntax.value.length > 0){
    
        	syntax.select(); 
        	syntax = document.selection.createRange(); 
        
        	clipboardData.setData( 'text', ( syntax.text)); 
    
        }
    
    } 

    function isSeek(){
        
        if( document.seek.ins.value.trim().length == 0){
            
            alert('請輸入關鍵字進行影片搜尋！');
            document.seek.ins.focus();
            return false;
            
        }

    }