flex calendar

<?xml version="1.0" encoding="utf-8"?>
<mx:Application creationComplete="init()" height="400" layout="absolute" minHeight="400"
                minWidth="600" width="100%" xmlns:mx="">

    <mx:Script>
        <![CDATA[
            import mx.controls.Alert;
            import mx.controls.Text;
            
            private var offset:int = 10;
            
            private function init():void {
                drawM(0);
                drawM(1);
            }
            
            private function drawM(m:int): void{
                var d:Date = new Date(2011,m,2);
                var wd:int = d.getDay();
                var start:int = 1;
                var end:int = 30;
                var y:int = d.getFullYear();
                switch (m + 1) {
                    case 1:
                    case 3:
                    case 5:
                    case 7:
                    case 8:
                    case 10:
                    case 12:
                        end = 31;
                        break;
                    case 4:
                    case 6:
                    case 9:
                    case 11:
                        end = 30;
                        break;
                    case 2:
                        if (y % 4 == 0 && y % 100 != 0) {
                            end = 29;
                        } else {
                            end = 28;
                        }
                }
                //canv.width = end * 20 + 10;

                var cy:Canvas = new Canvas();
                cy.setStyle("backgroundColor", "#6e6eff");
                cy.setStyle("borderStyle", "solid");
                cy.x = offset;
                cy.y = canv.y;
                cy.width = end * 20;
                cy.height = 20;
                var txt:Text = new Text();
                txt.text = y + "年" + (m + 1) + "月";
                
                cy.addChild(txt);
                canv.addChild(cy);
                var weekCnt:int = 1;
                for (var i:int = 1; i <= end; i++) {
                    var t1:Date = new Date(y, m, i);
                    var w:int = t1.getDay();
                    var strW:String = getW(w);
                    
                    // weed calc

                    if(w == 0 && i != 1){
                        weekCnt ++;
                        // week width

                        var weekWidth:int = 0;
                        var endWeekDay:int = 6;
                        if(i + 6 > end){
                            endWeekDay = end - i - 1;
                            //Alert.show("haha" + i);

                        }
                        
                        weekWidth = 20 + endWeekDay * 20;
                        var cweek:Canvas = new Canvas();
                        cweek.setStyle("backgroundColor", "#eeee6e");
                        cweek.setStyle("borderStyle", "solid");
                        var txt2:Text = new Text();
                        txt2.text = "第"+weekCnt+"周";
                        txt2.width = weekWidth;
                        cweek.addChild(txt2);
                        cweek.x = offset + i * 20;
                        cweek.y = canv.y + cy.height;
                        cweek.width = weekWidth;
                        cweek.height = 20;
                        cweek.horizontalScrollPolicy = "off";
                        cweek.verticalScrollPolicy = "off";
                        canv.addChild(cweek);
                    }
                    
                    
                    if(i == 1){
                        // week width

                        var weekWidth1:int = (w + 1) * 20 + (6-w) * 20;
                        weekWidth1 = (w + 1) * 20 + (6-w) * 20;
                        var cweek1:Canvas = new Canvas();
                        cweek1.setStyle("backgroundColor", "#fefe6e");
                        cweek1.setStyle("borderStyle", "solid");
                        var txt1:Text = new Text();
                        txt1.text = "第1周";
                        cweek1.addChild(txt1);
                        cweek1.x = offset;
                        cweek1.y = canv.y + cy.height;
                        cweek1.width = weekWidth1;
                        cweek1.height = 20;
                        canv.addChild(cweek1);
                    }
                    
                    var txtDate:Text = new Text();
                    txtDate.text = i + "";
                    
                    var dateC:Canvas = new Canvas();
                    dateC.width = 20;
                    dateC.height = 20;
                    dateC.setStyle("borderStyle", "solid");
                    dateC.x = 20 * (i - 1) + offset;
                    dateC.y = canv.y + 40;
                    dateC.addChild(txtDate);
                    canv.addChild(dateC);
                    
                    
                    var txtWD:Text = new Text();
                    txtWD.text = strW;
                    var dateW:Canvas = new Canvas();
                    dateW.width = 20;
                    dateW.height = 20;
                    dateW.setStyle("borderStyle", "solid");
                    dateW.x = 20 * (i - 1) + offset ;
                    dateW.y = canv.y + 40 + dateC.height;
                    dateW.addChild(txtWD);
                    canv.addChild(dateW);
                }
                
                offset += cy.width;
            }
            
            private function getW(i:int):String {
                if (i == 0) {
                    return "日";
                } else if (i == 1) {
                    return "一";
                } else if (i == 2) {
                    return "二";
                } else if (i == 3) {
                    return "三";
                } else if (i == 4) {
                    return "四";
                } else if (i == 5) {
                    return "五";
                } else {
                    return "六";
                }
            }
        ]]>
    </mx:Script>

    <mx:Canvas backgroundColor="#FFFFFF" borderStyle="solid" height="100%" id="canv" width="100%"
             x="10" y="10">
    </mx:Canvas>

</mx:Application>