Use canvas to draw a cool clock_html5 tutorial skills

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<script><br>window.onload=draw;<br>function draw() {<br>var canvas=document.getElementById('canvas');<br>var context= canvas.getContext('2d');<br>context.save(); ////////////////////////////////// ///Save<br>context.translate(200,200);<br>var deg=2*Math.PI/12; <br>/////////////////// /////////////////////////////////Dial<br>context.save(); <br>context.beginPath(); <br>for(var i=0;i<13;i ){<br />var x=Math.sin(i*deg);<br />var y=-Math.cos(i*deg);<br />context.lineTo(x*150,y*150); <br />}<br />var c=context.createRadialGradient(0,0,0,0,0,130);<br />c.addColorStop(0,"# 22f");<br />c.addColorStop(1,"#0ef")<br />context.fillStyle=c;<br />context.fill();<br />context.closePath(); <br />context. restore(); <br />////////////////////////////////////////////// ///////Number<br />context.save();<br />context.beginPath();<br />for(var i=1;i<13;i ){<br />var x1=Math .sin(i*deg);<br />var y1=-Math.cos(i*deg);<br />context.fillStyle="#fff";<br />context.font="bold 20px Calibri";<br />context.textAlign='center';<br />context.textBaseline='middle';<br />context.fillText(i,x1*120,y1*120); <br />}<br />context.closePath( ); <br />context.restore(); <br />////////////////////////////////////// ///////////////Large scale<br />context.save();<br />context.beginPath(); <br />for(var i=0;i<12;i ) {<br />var x2=Math.sin(i*deg);<br />var y2=-Math.cos(i*deg);<br />context.moveTo(x2*148,y2*148);<br />context.lineTo(x2*135,y2*135); <br />} <br />context.strokeStyle='#fff';<br />context.lineWidth=4;<br />context.stroke();<br />context.closePath();<br />context.restore(); <br />//////////////////////////////// ////////////////////Small scale<br />context.save();<br />var deg1=2*Math.PI/60;<br />context.beginPath (); <br />for(var i=0;i<60;i ){<br />var x2=Math.sin(i*deg1);<br />var y2=-Math.cos(i*deg1) ;<br />context.moveTo(x2*146,y2*146);<br />context.lineTo(x2*140,y2*140); <br />} <br />context.strokeStyle='#fff';<br />context.lineWidth=2;<br />context.stroke();<br />context.closePath(); <br />context.restore(); <br />//////////// /////////////////////////////////////////Text<br />context.save();<br />context.strokeStyle="#fff";<br />context.font=' 34px sans-serif';<br />context.textAlign='center';<br />context.textBaseline='middle';<br /> context.strokeText('canvas',0,65); <br />context.restore(); <br />////////////////////////// /////////////////////////new Date<br />var time=new Date();<br />var h=(time.getHours() )*2*Math.PI/12;<br />var m=time.getMinutes()*2*Math.PI/60;<br />var s=time.getSeconds()*2*Math.PI/60; </p> <p>///////////////////////////////////////////////// //Hour hand<br>context.save();<br>context.rotate( h m/12 s/720) ;<br>context.beginPath();<br>context.moveTo(0,6);<br>context.lineTo(0,-85);<br>context.strokeStyle="#fff";<br>context.lineWidth=6;<br>context.stroke();<br>context.closePath(); <br>context.restore();<br>/////////////////////////////////////// ////////Minute hand<br>context.save();<br>context.rotate( m s/60 ) ;<br>context.beginPath();<br>context.moveTo(0,8) ;<br>context.lineTo(0,-105);<br>context.strokeStyle="#fff";<br>context.lineWidth=4;<br>context.stroke();<br>context.closePath ();<br>context.restore();<br>///////////////////////////////////// //////////Second hand<br>context.save();<br>context.rotate( s ) ;<br>context.beginPath();<br>context.moveTo(0,10) ;<br>context.lineTo(0,-120);<br>context.strokeStyle="#fff";<br>context.lineWidth=2;<br>context.stroke();<br>context.closePath ();<br>context.restore(); <br>context.restore();////////////////////////////// Stack out<br>setTimeout(draw, 1000);//////////////////////////////Timer</p> <p>}</p> <p></script>