function formatomiles(form)
{

	var i=0, j=0, cnt=0, largo=0;
	var etexto = new String(""), xtexto = new String(""), dtexto = new String(form.value);

	
	largo = dtexto.length;

	// ciclo que da vuelta el string
	for ( i=largo; i>=0 ; i--)
	{
		if (dtexto.charAt(i) >= "0" && dtexto.charAt(i) <= "9")
		{
			etexto = etexto + dtexto.charAt(i);
		}
	}

	//ciclo que agrega puntos			
	for(i=0;i<=largo;i++)
	{
		if (cnt==3)
		{
			xtexto = xtexto + '.';
			xtexto = xtexto + etexto.charAt(i,1);
			cnt = 1;
		}
	    else
    	{
	  		xtexto = xtexto + etexto.charAt(i,1);
		    cnt++;
	    }
	}

	//ciclo que da vuelta el string formateado
	largo = xtexto.length;
	etexto="";
	for ( i=largo+1; i>=0 ; i--)
	{
		etexto = etexto + xtexto.charAt(i,1);
	}
	
if (etexto.charAt(0,1)=='.')
{
	largo=etexto.length;
	dtexto=etexto;
	etexto="";
	for ( i=1; i<=largo ; i++)
	{
		etexto = etexto + dtexto.charAt(i,1);
	}
}



	if (form.name=='monto_liq')
	{
		document.autent.monto_liqx.value=form.value
		form.value=etexto
	}
	if (form.name=='notario')
	{
		document.autent.notariox.value=form.value
		form.value=etexto
	}

}

function check_date(field)
{
var checkstr = "0123456789";
var DateField = field;
var Datevalue = "";
var DateTemp = "";
var seperator = "-";
var day;
var month;
var year;
var leap = 0;
var err = 0;
var i;
   err = 0;
   DateValue = DateField.value;
   /* Delete all chars except 0..9 */
   for (i = 0; i < DateValue.length; i++) {
	  if (checkstr.indexOf(DateValue.substr(i,1)) >= 0) {
	     DateTemp = DateTemp + DateValue.substr(i,1);
	  }
   }
   DateValue = DateTemp;
   /* Always change date to 8 digits - string*/
   /* if year is entered as 2-digit / always assume 20xx */
   if (DateValue.length == 6) {
      DateValue = DateValue.substr(0,4) + '20' + DateValue.substr(4,2); }
   if (DateValue.length != 8) {
      err = 19;}
   /* year is wrong if year = 0000 */
   year = DateValue.substr(4,4);
   if (year == 0) {
      err = 20;
   }
   /* Validation of month*/

   month = DateValue.substr(2,2);
   if ((month < 1) || (month > 12)) {
      err = 21;
   }
   /* Validation of day*/

   day = DateValue.substr(0,2);
   if (day < 1) {
     err = 22;
   }
   /* Validation leap-year / february / day */
   if ((year % 4 == 0) || (year % 100 == 0) || (year % 400 == 0)) {
      leap = 1;
   }
   if ((month == 2) && (leap == 1) && (day > 29)) {
      err = 23;
   }
   if ((month == 2) && (leap != 1) && (day > 28)) {
      err = 24;
   }
   /* Validation of other months */
   if ((day > 31) && ((month == "01") || (month == "03") || (month == "05") || (month == "07") || (month == "08") || (month == "10") || (month == "12"))) {
      err = 25;
   }
   if ((day > 30) && ((month == "04") || (month == "06") || (month == "09") || (month == "11"))) {
      err = 26;
   }
   /* if 00 ist entered, no error, deleting the entry */
   if ((day == 0) && (month == 0) && (year == 00)) {
      err = 0; day = ""; month = ""; year = ""; seperator = "";
   }
   /* if no error, write the completed date to Input-Field (e.g. 13.12.2001) */
   if (err == 0) {
      DateField.value = day + seperator + month + seperator + year;
   }
   /* Error-message if err != 0 */
   else {
      alert("La fecha es incorrecta, favor ingresar denuevo utilizando el formato: dd-mm-aaaa, y cerciorese que los dias, meses y aņos correspondan");
      DateField.select();
	  DateField.focus();
   }
}

function monto1(form)
{
	form.monto_liq.value=form.monto_liqx.value
	form.monto_liq.select()
	
}

function monto2(form)
{
	form.notario.value=form.notariox.value
	form.notario.select()
	
}




function valida_seg_desgravamen(form)
{
		form.seg_desg_inv.checked=false
}
function valida_seg_desg_inv(form)
{
		form.seg_desgravamen.checked=false
}
function deshabilita_meses_sel1(form)
{
	form.meses_gracia.disabled=false
	form.mes_no_pago1.disabled=true
	form.mes_no_pago2.disabled=true
	form.mes_no_pago1.selectedIndex=0
	form.mes_no_pago2.selectedIndex=0
		
}
function deshabilita_meses_sel2(form)
{
	form.meses_gracia.disabled=true
	form.mes_no_pago1.disabled=false
	form.mes_no_pago2.disabled=false
	form.meses_gracia.selectedIndex=0
	
}