jQuery联动日历（三）完成

一、要实现的功能：

　　1.点击上面的箭头，切换至上一个月，或下一个月，并且是联动的。

　　2.只要不是现实中的当月，那么显示的日期，都是灰色底。

二、分析：

　　1.当我们点击切换日期的箭头时，要改变顶部蓝色的年份和日期。

　　2.当我们点击切换日期的箭头时，下面TD的日期也要和上面显示的月份对应起来。

　　3.用一个判断，是否现实中的当月，来控制TD的背景色，是否为灰色

 

DEMO下载

//点击更新前一个月
    $(".pre").live("click",function(){
        nowTitleDateM--;
        if(nowTitleDateM == 11){
                nowLastM = nowTitleDateM-1
                nextTitleDateY--
                nextTitleDateM = nowTitleDateM+1
                nextLastM = 1
        }else if(nowTitleDateM == 0){
                nowTitleDateY--
                nowTitleDateM = 12;
                nowLastM = nowTitleDateM-1;
                nextTitleDateM = 1;
                nextLastM = nextTitleDateM+1
        }else if(nowTitleDateM == 1){
                nowLastM = 12;
                nextTitleDateM = nowTitleDateM+1
                nextLastM = nextTitleDateM+1
        }else{
                nowLastM = nowTitleDateM-1
                nextTitleDateM = nowTitleDateM+1
                nextLastM = nextTitleDateM+1
        }
            
        //天数和存放位置
        update();
        
        //插入到日期数的TD当中                    
        insertTd();
        
        //更新日期标题
        updateTitle();

    })

//点击下一个月
$(".next").live("click",function(){
    nowTitleDateM++;
    if(nowTitleDateM == 12){
            nowLastM = nowTitleDateM-1
            nextTitleDateY++
            nextTitleDateM = 1
            nextLastM = nextTitleDateM+1
    }else if(nowTitleDateM == 11){
            nowLastM = nowTitleDateM-1
            nextTitleDateM = nowTitleDateM+1
            nextLastM = 1
    }else if(nowTitleDateM == 13){
            nowTitleDateY++
            nowTitleDateM = 1;
            nowLastM = 12;
            nextTitleDateM = nowTitleDateM+1;
            nextLastM = nextTitleDateM+1
    }else if(nowTitleDateM == 1){
            nowLastM = 12;
            nextTitleDateM = nowTitleDateM+1
            nextLastM = nextTitleDateM+1
    }else{
            nowLastM = nowTitleDateM-1
            nextTitleDateM = nowTitleDateM+1
            nextLastM = nextTitleDateM+1
    }
            
        //天数和存放位置
        update();
        
        //插入到日期数的TD当中                    
        insertTd();
        
        //更新日期标题
        updateTitle();

    })