var isItSouth=lanHalfJudge();
var seasonnum=0;
getSeason();
function lanHalfJudge()
{

    var south=false;
    switch (navigator.userLanguage.toLowerCase())
    {
        case 'en-au': south=true;
            break;
        case 'af-za': south=true;
            break;
        case 'es-cl': south=true;
            break;
        case 'es-ar': south=true;
            break;
        case 'pt-br': south=true;
            break;
        case 'en-nz': south=true;
            break;
        case 'ar-dz': south=true;
            break;
        case 'ar-eg': south=true;
            break;
        case 'ar-ma': south=true;
            break;
        case 'ar-ly': south=true;
            break;
        //more south half countries
        default: south=false;
            break;
    }
  return south; 
 
}
 
function getSeason()
{
    
    var seasonnum=0;
    var now = new Date();
    var month = now.getMonth() + 1;
    switch (month)
    {
        case 2:
        case 3:
        case 4:
             seasonnum=1;
             break;
        case 5:
        case 6:
        case 7:
             seasonnum=2;
             break;
        case 8:
        case 9:
        case 10:
             seasonnum=3;
             break;
        case 11:
        case 12:
        case 1:
             seasonnum=4;
             break;
        default: -1;
            break;
    }
    if (lanHalfJudge()==true)
    {
        if (seasonnum==2)
            seasonnum=4;
        else if (seasonnum==4)
            seasonnum=2; 
    }
    this.seasonnum=seasonnum;
    return seasonnum;
}
function showSeasonMsg()
{
    var msg='';
    switch (seasonnum)
    {
        case 1:
         msg+='<img src="image/season/spring.jpg" alt="春" align="middle"/ >春';
         break;
        case 2:
         msg+='<img src="image/season/summer.jpg" alt="夏" align="middle"/ >夏';
         break;
        case 3:
         msg+='<img src="image/season/autumn.jpg" alt="秋" align="middle"/ >秋';
         break;
        case 4:
         msg+='<img src="image/season/winter.jpg" alt="冬" align="middle"/ >冬';
         break;
        default: msg='';
    } 
    return msg;
}

function showCareMsg()
{
    
    var msg='请注意';
    switch (seasonnum)
    {
        case 1:
         msg+='春季';
         break;
        case 2:
         msg+='夏季';
         break;
        case 3:
         msg+='秋季运动';
         break;
        case 4:
         msg+='冬季滋补和休养身息';
         break;
        default: msg='';
    } 
    return msg;
}