/* formexp.js compiled from X 4.0 with XC 0.27b. Distributed by GNU LGPL. For copyrights, license, documentation and more visit Cross-Browser.com */
var xOp7Up,xOp6Dn,xIE4Up,xIE4,xIE5,xNN4,xUA=navigator.userAgent.toLowerCase();if(window.opera){var i=xUA.indexOf('opera');if(i!=-1){var v=parseInt(xUA.charAt(i+6));xOp7Up=v>=7;xOp6Dn=v<7;}}else if(navigator.vendor!='KDE' && document.all && xUA.indexOf('msie')!=-1){xIE4Up=parseFloat(navigator.appVersion)>=4;xIE4=xUA.indexOf('msie 4')!=-1;xIE5=xUA.indexOf('msie 5')!=-1;}else if(document.layers){xNN4=true;}xMac=xUA.indexOf('mac')!=-1;function xDef(){for(var i=0; i<arguments.length; ++i){if(typeof(arguments[i])=='undefined') return false;}return true;}function xDisplay(e,s){if(!(e=xGetElementById(e))) return null;if(e.style && xDef(e.style.display)) {if (xStr(s)) e.style.display = s;return e.style.display;}return null;}function xGetElementById(e){if(typeof(e)!='string') return e;if(document.getElementById) e=document.getElementById(e);else if(document.all) e=document.all[e];else e=null;return e;}function xStr(s){for(var i=0; i<arguments.length; ++i){if(typeof(arguments[i])!='string') return false;}return true;}

//funcion ocultar campos
function expandir_formulario(){
 if (document.main.expandir[0].checked){
	xDisplay('capaexpansion', 'none')
	xDisplay('capacargo', 'none')
 }else if(document.main.expandir[1].checked) {
	xDisplay('capaexpansion', 'block')
	xDisplay('capacargo', 'block')
 }

}

//set todays date
Now = new Date();
NowDay = Now.getDate();
NowMonth = Now.getMonth();
NowYear = Now.getYear();
if (NowYear < 2000) NowYear += 1900; //for Netscape

//function for returning how many days there are in a month including leap years
function DaysInMonth(WhichMonth, WhichYear)
{
  var DaysInMonth = 31;
  if (WhichMonth == "Abril" || WhichMonth == "Junio" || WhichMonth == "Septiembre" || WhichMonth == "Noviembre") DaysInMonth = 30;
  if (WhichMonth == "Febrero" && (WhichYear/4) != Math.floor(WhichYear/4))	DaysInMonth = 28;
  if (WhichMonth == "Febrero" && (WhichYear/4) == Math.floor(WhichYear/4))	DaysInMonth = 29;
  return DaysInMonth;
}

//function to change the available days in a months
function ChangeOptionDays(Which)
{
  DaysObject = eval("document.main." + Which + "Day");
  MonthObject = eval("document.main." + Which + "Month");
  YearObject = eval("document.main." + Which + "Year");

  Month = MonthObject[MonthObject.selectedIndex].text;
  Year = YearObject[YearObject.selectedIndex].text;

  DaysForThisSelection = DaysInMonth(Month, Year);
  CurrentDaysInSelection = DaysObject.length;
  if (CurrentDaysInSelection > DaysForThisSelection)
  {
    for (i=0; i<(CurrentDaysInSelection-DaysForThisSelection); i++)
    {
      DaysObject.options[DaysObject.options.length - 1] = null
    }
  }
  if (DaysForThisSelection > CurrentDaysInSelection)
  {
    for (i=0; i<(DaysForThisSelection-CurrentDaysInSelection); i++)
    {
      NewOption = new Option(DaysObject.options.length + 1);
      DaysObject.add(NewOption);
    }
  }
    if (DaysObject.selectedIndex < 0) DaysObject.selectedIndex == 0;
}

//function to set options to today
function SetToToday(Which)
{
  DaysObject = eval("document.main." + Which + "Day");
  MonthObject = eval("document.main." + Which + "Month");
  YearObject = eval("document.main." + Which + "Year");

  YearObject[0].selected = true;
  MonthObject[NowMonth].selected = true;

  ChangeOptionDays(Which);

  DaysObject[NowDay+0].selected = true;
}

//function to write option years plus x
function WriteYearOptions(YearsAhead)
{
  line = "";
  for (i=0; i<YearsAhead; i++)
  {
    line += "<OPTION>";
    line += NowYear + i;
  }
  return line;
}
//  End -->

// funcion validar email
<!-- hide this script tag's contents from old browsers
function validarEmail(main) {
 if(main.email.value.indexOf("@") != "-1" && main.email.value.indexOf(".") != "-1") {
  } else {
    alert("La dirección email es incorrecta.");
	main.email.value="";
  }
}

//-->