flash日期大小比较方法

function datebj(riqi:String){
 var dqdate:Date=new Date();
 nian_1=dqdate.getYear()+1900;
 yue_1=dqdate.getMonth()+1;
 ri_1=dqdate.getDate();
 var riqi_1:String=riqi;
 var riqi_2:Array=riqi_1.split("-");
 nian_2=riqi_2[0];
 yue_2=riqi_2[1];
 ri_2=riqi_2[2];
 var currentdate:Date=new Date(nian_1,yue_1,ri_1);
 var mill_1:Number=currentdate.getTime();
 var otherdate:Date=new Date(nian_2,yue_2,ri_2);
 var mill_2:Number=otherdate.getTime();
 if (mill_1>mill_2)
    {return "0";}
  else
    {return "1";}
}