function MostrarMes(frm,dia,mes,anno)
{
	window.open('Mes.asp?hhFrm='+ frm +'&hhDia='+ dia +'&hhMes='+ mes +'&hhAnno='+ anno +'','1','width=300,height=180')
}
	
function KeyEnter()
{
	if (window.event.keyCode == 13) 
		{
			return;
		}
}	

function pf(num) //parse un numero y lo redondea
{
	var var1;
	var1 = parseFloat(num);
	var1 = Math.round(num*100)/100;
	return var1;
}
	function FechaValida(dia, mes, anio)
	{
		var devuelve;
		if (anio!='')
		{
			if ((mes==4 || mes==6 || mes==9 || mes==11 || mes==8 || mes==10 || mes==12) && dia<=30) 
			{ 
				devuelve=true; 
			} 
			
			if ((mes==1 || mes==3 || mes==5 || mes==7 || mes==8 || mes==10 || mes==12) && dia<=31) 
			{ 
				devuelve= true; 
			}
			
			if (mes == 2)
			{
				var isleap = (anio % 4 == 0 && (anio % 100 != 0 || anio % 400 == 0)); 
				if (dia > 29 || (dia == 29 && !isleap)) 
				{
				   devuelve= false; 
				}
				else 
				{
					devuelve= true;
				}
			}
		}
		else
		{
			devuelve = false;
		}
		return devuelve;
	};

	function EsDecimal(Cadena)
	{
		var valor, strValor;
		if (Cadena.indexOf(',') != -1)
			return false;
		strValor = Cadena.replace(',','.');
		valor = parseFloat(strValor);
		if (isNaN(valor))
			return false;

		if (strValor == valor.toString())
			return true;
		else
		{
			i = strValor.length - 1;
			while (strValor.substr(i, 1) == '0' && i >= 0)
			{
				strValor = strValor.substr(0, strValor.length - 1);
				i--;
			};
			
			if (strValor.substr(strValor.length - 1, 1) == ',')
				strValor = strValor.substr(0, strValor.length - 1);
			
			if (strValor == valor.toString())
				return true;
			else
			{
				strValor = strValor.substr(0, strValor.indexOf(',') - 1)
				return false;
			}
		}
	}

	function StringVacio(Cadena)
	{
	    if (Cadena.match(/\S/) != null && Cadena.length > 0)
			return false
		else
			return true;
	}	
	
	function EsNumerico(Cadena)
	{
		if (Cadena.match(/\D/) != null)
		{
			return false;
		}
		else
		{
			return true;
		}
	}

function FormatNumber(num,decimalNum,bolLeadingZero,bolParens,bolCommas)
/**********************************************************************
	IN:
		NUM - the number to format
		decimalNum - the number of decimal places to format the number to
		bolLeadingZero - true / false - display a leading zero for
										numbers between -1 and 1
		bolParens - true / false - use parenthesis around negative numbers
		bolCommas - put commas as number separators.
 
	RETVAL:
		The formatted number!
 **********************************************************************/
{ 
        if (isNaN(parseInt(num))) return "NaN";

	var tmpNum = num;
	var iSign = num < 0 ? -1 : 1;		// Get sign of number
	
	// Adjust number so only the specified number of numbers after
	// the decimal point are shown.
	tmpNum *= Math.pow(10,decimalNum);
	tmpNum = Math.round(Math.abs(tmpNum))
	tmpNum /= Math.pow(10,decimalNum);
	tmpNum *= iSign;					// Readjust for sign
	
	
	// Create a string object to do our formatting on
	var tmpNumStr = new String(tmpNum);

	// See if we need to strip out the leading zero or not.
	if (!bolLeadingZero && num < 1 && num > -1 && num != 0)
		if (num > 0)
			tmpNumStr = tmpNumStr.substring(1,tmpNumStr.length);
		else
			tmpNumStr = "-" + tmpNumStr.substring(2,tmpNumStr.length);
		
	// See if we need to put in the commas
	if (bolCommas && (num >= 1000 || num <= -1000)) {
		var iStart = tmpNumStr.indexOf(".");
		if (iStart < 0)
			iStart = tmpNumStr.length;

		iStart -= 3;
		while (iStart >= 1) {
			tmpNumStr = tmpNumStr.substring(0,iStart) + "," + tmpNumStr.substring(iStart,tmpNumStr.length)
			iStart -= 3;
		}		
	}

	// See if we need to use parenthesis
	if (bolParens && num < 0)
		tmpNumStr = "(" + tmpNumStr.substring(1,tmpNumStr.length) + ")";

	return tmpNumStr;		// Return our formatted string!
}


        function Right(str, n)
        {
                if (n <= 0)    
                   return "";
                else if (n > String(str).length)   
                   return str;                     
                else { 
                   var iLen = String(str).length;
                   return String(str).substring(iLen, iLen - n);
                }
        }
        function Mid(str, start, len)
        {
                
                if (start < 0 || len < 0) return "";

                var iEnd, iLen = String(str).length;
                if (start + len > iLen)
                        iEnd = iLen;
                else
                        iEnd = start + len;

                return String(str).substring(start,iEnd);
        }
		function isMail(_email)
		{
		     var emailReg = /^[a-z][a-z-_0-9\.]+@[a-z-_=>0-9\.]+\.[a-z]{2,3}$/i
		     return emailReg.test(_email);
		  }		
		function isValidEmail(str)
		{
		   return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);		
		}