var daysInMonth=[ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 ];



  function validateIntegerInput(text)

  {

    if(

        (text)&&

        (text.length>0)

      )

    {

      if(

          (/(^[+|-])*\d*$/.test(text))&&

          (text.indexOf('.')==-1)&&

          (text.indexOf(':')==-1)&&

          (text.indexOf(',')==-1)

        )

      {

        var i=parseInt(text);

        if((i>-0x8000000000000000)&&(i<0x7FFFFFFFFFFFFFFF) && (text == i))

          return(true);

      }

    }

    return(false);

  }









  function validateNullableIntegerInput(text)

  {

    if(

        (text)&&

        (text.length==0)

      )

      return(true);

    if(text)

    {

      if(

          (/(^[+|-])*\d*$/.test(text))&&

          (text.indexOf('.')==-1)&&

          (text.indexOf(':')==-1)&&

          (text.indexOf(',')==-1)

        )

      {

        var i=parseInt(text);

        if((i>-0x8000000000000000)&&(i<0x7FFFFFFFFFFFFFFF) && (text == i))

          return(true);

      };

    };

    return(false);

  }







  function validateJavaDateOld(year, month, day, minYear, maxYear)

  {

    var y;

    var m;

    var d;

    var mYear;

    var MYear;





    mYear=minYear || 1970;

    MYear=maxYear || 2070;

    if(!validateIntegerInput(year))

      return(false);

    if(!validateIntegerInput(month))

      return(false);

    if(!validateIntegerInput(day))

      return(false);



    y=parseInt(year);

    m=parseInt(month);

    d=parseInt(day);

    if( (y%4 == 0) && ((y%100!=0)||(y%400==0)) )

      daysInMonth[1]=29;

    else

      daysInMonth[1]=28;

    if( (y<mYear) || (y>MYear) || (m<0) || (m>11) || (d<=0) || (d>daysInMonth[m]) )

      return(false);



    return(true);

  }











  function validateJavaDate(frm, name, minYear, maxYear)

  {

    var y;

    var M;

    var d;

    var h;

    var m;

    var s;



    var yInput;

    var MInput;

    var dInput;

    var hInput;

    var mInput;

    var sInput;



    var mYear;

    var MYear;



    mYear=minYear || 1970;

    MYear=maxYear || 2070;

    y=mYear;



    yInput=eval("window.document." + frm.name + "." + name + "_year");

    MInput=eval("window.document." + frm.name + "." + name + "_month");

    dInput=eval("window.document." + frm.name + "." + name + "_date");

    hInput=eval("window.document." + frm.name + "." + name + "_hour");

    mInput=eval("window.document." + frm.name + "." + name + "_minute");

    sInput=eval("window.document." + frm.name + "." + name + "_second");



    if(yInput)

    {

      y=parseInt(yInput.value);

      if( (y<mYear) || (y>MYear) )

        return(false);

    };



    if( (y%4 == 0) && ((y%100!=0)||(y%400==0)) )

      daysInMonth[1]=29;

    else

      daysInMonth[1]=28;



    if(MInput)

    {

      M=MInput.selectedIndex;

      if( (M<0) || (M>11) )

        return(false);

    };



    if(dInput)

    {

      d=parseInt(dInput.value);

      if( (d<=0) || (d>daysInMonth[M]) )

        return(false);

    };



    if(hInput)

    {

      h=parseInt(hInput.value);

      if( (h<0) || (h>23) )

        return(false);

    };



    if(mInput)

    {

      m=parseInt(mInput.value);

      if( (m<0) || (m>59) )

        return(false);

    };



    if(sInput)

    {

      s=parseInt(sInput.value);

      if( (s<0) || (s>59) )

        return(false);

    };



    return(true);

  }









  function validateNullableJavaDate(frm, name, minYear, maxYear)

  {

    var y;

    var M;

    var d;

    var h;

    var m;

    var s;



    var yInput;

    var MInput;

    var dInput;

    var hInput;

    var mInput;

    var sInput;



    var mYear;

    var MYear;



    mYear=minYear || 1970;

    MYear=maxYear || 2070;

    y=mYear;

    M=-1;

    yInput=eval("window.document." + frm.name + "." + name + "_year");

    MInput=eval("window.document." + frm.name + "." + name + "_month");

    dInput=eval("window.document." + frm.name + "." + name + "_date");

    hInput=eval("window.document." + frm.name + "." + name + "_hour");

    mInput=eval("window.document." + frm.name + "." + name + "_minute");

    sInput=eval("window.document." + frm.name + "." + name + "_second");



    if(yInput)

    {

      if(yInput.value.length>0)

      {

        y=parseInt(yInput.value);

        if( (y<mYear) || (y>MYear) )

          return(false);

      };

    };



    if( (y%4 == 0) && ((y%100!=0)||(y%400==0)) )

      daysInMonth[1]=29;

    else

      daysInMonth[1]=28;



    if(MInput)

      M=MInput.selectedIndex-1;



    if(dInput)

    {

      if(dInput.value.length>0)

      {

        d=parseInt(dInput.value);

        if(

            (M>-1)&&

            ( (d<=0) || (d>daysInMonth[M]) ) 

          )

          return(false);

      };

    };



    if(hInput)

    {

      if(hInput.value.length>0)

      {

        h=parseInt(hInput.value);

        if( (h<0) || (h>23) )

          return(false);

      };

    };



    if(mInput)

    {

      if(mInput.value.length>0)

      {

        m=parseInt(mInput.value);

        if( (m<0) || (m>59) )

          return(false);

      };

    };



    if(sInput)

    {

      if(sInput.value.length>0)

      {

        s=parseInt(sInput.value);

        if( (s<0) || (s>59) )

          return(false);

      };

    };



    return(true);

  }





//frm referencia al form

//dn1 y dn2 nombres de las fechas segun valor del property attribute del tag <strutsext:date>

//devuelve:

// -1 si dn1 anterior a dn2

//  0 si igualed

//  1 si dn1 posterior a dn2

  function compareStrutsextDates(frm, dn1, dn2)

  {

    var diff;

    var k1;

    var k2;



    k1=eval("frm.kdate_"+dn1+"_year");

    k2=eval("frm.kdate_"+dn2+"_year");

    if(k1)

    {

      diff=parseInt(k1.value)-parseInt(k2.value);

      if(diff<0)

        return(-1);

      else if(diff>0)

        return(1);

    };



    k1=eval("frm.kdate_"+dn1+"_month");

    k2=eval("frm.kdate_"+dn2+"_month");

    if(k1)

    {

      diff=k1.selectedIndex-k2.selectedIndex;

      if(diff<0)

        return(-1);

      else if(diff>0)

        return(1);

    };



    k1=eval("frm.kdate_"+dn1+"_date");

    k2=eval("frm.kdate_"+dn2+"_date");

    if(k1)

    {

      diff=parseInt(k1.value)-parseInt(k2.value);

      if(diff<0)

        return(-1);

      else if(diff>0)

        return(1);

    };



    k1=eval("frm.kdate_"+dn1+"_hour");

    k2=eval("frm.kdate_"+dn2+"_hour");

    if(k1)

    {

      diff=parseInt(k1.value)-parseInt(k2.value);

      if(diff<0)

        return(-1);

      else if(diff>0)

        return(1);

    };



    k1=eval("frm.kdate_"+dn1+"_minute");

    k2=eval("frm.kdate_"+dn2+"_minute");

    if(k1)

    {

      diff=parseInt(k1.value)-parseInt(k2.value);

      if(diff<0)

        return(-1);

      else if(diff>0)

        return(1);

    };



    k1=eval("frm.kdate_"+dn1+"_second");

    k2=eval("frm.kdate_"+dn2+"_second");

    if(k1)

    {

      diff=parseInt(k1.value)-parseInt(k2.value);

      if(diff<0)

        return(-1);

      else if(diff>0)

        return(1);

    };



    return(0);

  }