function showpic(divid,picid)
    {
        document.getElementById("imgBig").src=document.getElementById(picid).src;
        document.getElementById(divid).style.display="";
//        var x=window.event.x;
//        var y=window.event.y;
//        document.getElementById(divid).style.left=x-650;
//        document.getElementById(divid).style.top=y+document.documentElement.scrollTop;
    }
    function hidepic(divid)
    {
        document.getElementById(divid).style.display="none";
    }
	 function foodchange(pic1,picshowid)
	{		
	document.getElementById(picshowid).src="images/dining/"+pic1+".JPG";
	}
 function foodchange2(pic1,picshowid)
	{		
	document.getElementById(picshowid).src="images/dining/特色菜/"+pic1+".JPG";
	}
	function flypic(divid,picid)
	{
	    document.getElementById("imgBig").src=document.getElementById(picid).src;
	    
        document.getElementById(divid).style.display="";
        var x=event.clientX;
        //alert(x);
        var y=event.clientY;
        //alert(y);
        if(x>600){
             document.getElementById(divid).style.left=x-550;
        }if(x<=600){
             document.getElementById(divid).style.left=x-250;
        }if(y>400){
             document.getElementById(divid).style.top=y-950;
        }if(y<=400){
             document.getElementById(divid).style.top=y-650;
        }
      
	}
	function selectfoodmouseon(foodname){
		document.getElementById(foodname).style.display="block";
	}
	function selectfoodmouseout(foodname){
		document.getElementById(foodname).style.display="none";
	}