javascript做的日历，完全对象化，望高手提出改进意见。（2/3，将3部分拼成一个html文件浏览）_QQGB.co

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this.GetTextDate = function(theString){ //convert a string to a date, if the string is not a date, return a empty string
    var i = 0, tmpChar = "", find_tag = "";
    var start_at = 0, end_at = 0, year_at = 0, month_at = 0, day_at = 0;
    var tmp_at = 0, one_at = 0, two_at = 0, one_days = 0, two_days = 0;
    var aryDate = new Array();
    var tmpYear = -1, tmpMonth = -1, tmpDay = -1;
    var tmpDate = theString.toLowerCase();
    var defDate = "";
    end_at = tmpDate.length;
    for (i=1;i<end_at;i++){
      if (tmpDate.charAt(i)=="0"){
        tmpChar = tmpDate.charAt(i-1);
        if (tmpChar<"0" || tmpChar>"9"){
          tmpDate = tmpDate.substr(0,i-1) + "-" + tmpDate.substr(i+1);
        }
      }
    }
    for (i=0;i<9;i++){
      tmpDate = tmpDate.replace(this.MonthName[i].toLowerCase().substr(0,3), "-00" + (i+1).toString() + "-");
    }
    for (i=9;i<12;i++){
      tmpDate = tmpDate.replace(this.MonthName[i].toLowerCase().substr(0,3), "-0" + (i+1).toString() + "-");
    }
    tmpDate = tmpDate.replace(/jan/g, "-001-");
    tmpDate = tmpDate.replace(/feb/g, "-002-");
    tmpDate = tmpDate.replace(/mar/g, "-003-");
    tmpDate = tmpDate.replace(/apr/g, "-004-");
    tmpDate = tmpDate.replace(/may/g, "-005-");
    tmpDate = tmpDate.replace(/jun/g, "-006-");
    tmpDate = tmpDate.replace(/jul/g, "-007-");
    tmpDate = tmpDate.replace(/aug/g, "-008-");
    tmpDate = tmpDate.replace(/sep/g, "-009-");
    tmpDate = tmpDate.replace(/oct/g, "-010-");
    tmpDate = tmpDate.replace(/nov/g, "-011-");
    tmpDate = tmpDate.replace(/dec/g, "-012-");
    for (i=0;i<tmpDate.length;i++){
      tmpChar = tmpDate.charAt(i);
      if ((tmpChar<"0" || tmpChar>"9") && (tmpChar != "-")){
        tmpDate = tmpDate.replace(tmpChar,"-")
      }
    }
    while(tmpDate.indexOf("--") != -1){
      tmpDate = tmpDate.replace(/--/g,"-");
    }
    start_at = 0;
    end_at = tmpDate.length-1;
    while (tmpDate.charAt(start_at)=="-"){
      start_at++;
    }
    while (tmpDate.charAt(end_at)=="-"){
      end_at--;
    }
    if (start_at < end_at+1){
      tmpDate = tmpDate.substring(start_at,end_at+1);
    }else{
      tmpDate = "";
    }
    aryDate = tmpDate.split("-");
    if (aryDate.length != 3){
      return(defDate);
    }
    for (i=0;i<3;i++){
      if (parseInt(aryDate[i],10)<1){
        aryDate[i] = "1";
      }
    }
    find_tag="000";
    for (i=2;i>=0;i--){
      if (aryDate[i].length==3){
        if (aryDate[i]>="001" && aryDate[i]<="012"){
          tmpMonth = parseInt(aryDate[i],10)-1;
          switch (i){
            case 0:
              find_tag = "100";
              one_at = parseInt(aryDate[1],10);
              two_at = parseInt(aryDate[2],10);
              break;
            case 1:
              find_tag = "010";
              one_at = parseInt(aryDate[0],10);
              two_at = parseInt(aryDate[2],10);
              break;
            case 2:
              find_tag = "001";
              one_at = parseInt(aryDate[0],10);
              two_at = parseInt(aryDate[1],10);
              break;
          }
        }
      }
    }
    if (find_tag!="000"){
      one_days = this.GetMonthDays(two_at,tmpMonth);
      two_days = this.GetMonthDays(one_at,tmpMonth);
      if ((one_at>one_days)&&(two_at>two_days)){
        return(defDate);
      }
      if ((one_at<=one_days)&&(two_at>two_days)){
        tmpYear = this.GetFormatYear(two_at);
        tmpDay = one_at;
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