var x=0, y=0;
function n5_open()
{
    var c=document.getElementById("cvs1").getContext("2d");
    c.beginPath();
    c.fillStyle="#FFFFFF";    c.fillRect(0,0,800,500);
    c.strokeStyle="#000000";
    
    x=x-10;
    c.moveTo(100+x,5+y); c.lineTo(10+x,100+y); 
    c.lineTo(200+x,100+y); c.lineTo(100+x,5+y);
    c.moveTo(50+x,100+y); c.lineTo(50+x,200+y); 
    c.lineTo(150+x,200+y); c.lineTo(150+x,100+y);
    c.moveTo(100+30+x,150+y);    c.arc(100+x,150+y,30,0,Math.PI);
    c.moveTo(70-15+x,130+y);    c.arc(70+x,130+y,15,Math.PI,0);
    c.moveTo(130-15+x,130+y);    c.arc(130+x,130+y,15,Math.PI,0);        
    c.moveTo(100+5+x,140+y);    c.arc(100+x,140+y,5,Math.PI*2,0);        
    
    c.stroke();
}
function n6_open()
{
    var c=document.getElementById("cvs1").getContext("2d");
    c.beginPath();
    c.fillStyle="#FFFFFF";    c.fillRect(0,0,800,500);
    c.strokeStyle="#000000";
    
    x=x+10;
    c.moveTo(100+x,5+y); c.lineTo(10+x,100+y); 
    c.lineTo(200+x,100+y); c.lineTo(100+x,5+y);
    c.moveTo(50+x,100+y); c.lineTo(50+x,200+y); 
    c.lineTo(150+x,200+y); c.lineTo(150+x,100+y);
    c.moveTo(100+30+x,150+y);    c.arc(100+x,150+y,30,0,Math.PI);
    c.moveTo(70-15+x,130+y);    c.arc(70+x,130+y,15,Math.PI,0);
    c.moveTo(130-15+x,130+y);    c.arc(130+x,130+y,15,Math.PI,0);        
    c.moveTo(100+5+x,140+y);    c.arc(100+x,140+y,5,Math.PI*2,0);        
    
    c.stroke();
}
function n8_open()
{
    var c=document.getElementById("cvs1").getContext("2d");
    c.beginPath();
    c.fillStyle="#FFFFFF";    c.fillRect(0,0,800,500);
    c.strokeStyle="#000000";
    
    y=y+10;
    c.moveTo(100+x,5+y); c.lineTo(10+x,100+y); 
    c.lineTo(200+x,100+y); c.lineTo(100+x,5+y);
    c.moveTo(50+x,100+y); c.lineTo(50+x,200+y); 
    c.lineTo(150+x,200+y); c.lineTo(150+x,100+y);
    c.moveTo(100+30+x,150+y);    c.arc(100+x,150+y,30,0,Math.PI);
    c.moveTo(70-15+x,130+y);    c.arc(70+x,130+y,15,Math.PI,0);
    c.moveTo(130-15+x,130+y);    c.arc(130+x,130+y,15,Math.PI,0);        
    c.moveTo(100+5+x,140+y);    c.arc(100+x,140+y,5,Math.PI*2,0);        
    
    c.stroke();
}
function n7_open()
{
    var c=document.getElementById("cvs1").getContext("2d");
    c.beginPath();
    c.fillStyle="#FFFFFF";    c.fillRect(0,0,800,500);
    c.strokeStyle="#000000";
    
    y=y-10;
    c.moveTo(100+x,5+y); c.lineTo(10+x,100+y); 
    c.lineTo(200+x,100+y); c.lineTo(100+x,5+y);
    c.moveTo(50+x,100+y); c.lineTo(50+x,200+y); 
    c.lineTo(150+x,200+y); c.lineTo(150+x,100+y);
    c.moveTo(100+30+x,150+y);    c.arc(100+x,150+y,30,0,Math.PI);
    c.moveTo(70-15+x,130+y);    c.arc(70+x,130+y,15,Math.PI,0);
    c.moveTo(130-15+x,130+y);    c.arc(130+x,130+y,15,Math.PI,0);        
    c.moveTo(100+5+x,140+y);    c.arc(100+x,140+y,5,Math.PI*2,0);        
    
    c.stroke();
}