function _IsInteger(str) { if (typeof(str)=='undefined') { return false; } var expr = /^[+-]?[0-9]*$/; if (!expr.test(str)) return false; return true; }

function _IsNumber(str) { if (typeof(str)=='undefined') { return false; } var expr1 = /^[+-]?[0-9]+(.[0-9]{0,})?$/; var expr2 = /^[+-]?(.[0-9]{0,})?$/; if (!expr1.test(str)){ if (!expr2.test(str)){ return false; } } return true; }

function _IsMoney(str) { if (typeof(str)=='undefined') { return false; } var expr1 = /(?!^0*$)(?!^0*.0*$)^d{1,10}(.d{1,2})?$/; if (!expr1.test(str)){ return false; } return true; }

function _ValInMinMax(value,min,max) { if (!(_IsNumber(value))) { return false; } if ((!(_IsNumber(min))) || (!(_IsNumber(max)))) { return false; } if ((typeof(min)!='undefined') || (typeof(max)!='undefined')) { if ((typeof(min)!='undefined') && (typeof(max)!='undefined')) { if ((!isNaN(min)) && (!isNaN(max))) if (min>max) return false; } else { if (typeof(min)!='undefined') { if (!isNaN(min)) if (valuemax) return false; } } } return true; }

function _check_number_date(_str)
{
	var cero = false;
	var new_str = '';

	if(_str.substr(0,1)=='0'){
		var cero = true; i=1;}
	else{
		return _str;}
	
	for(var i = 1 ; i < _str.length ; i++)
	{
		if(_str.substr(i,1)=='0'){cero = true}
		else{cero = false}
		if(!cero){new_str += _str.substr(i,1);}
	}
	
	return new_str;
}

function _IsDate(date, mask, schar){ 
	var _tt = date.split(schar)
	if (typeof(date)=='undefined'){ return false; } 
	if (typeof(mask)=='undefined'){ mask = "mmddyyyy"; } 
	else { mask = mask.toLowerCase(); } 
	if (typeof(schar)=='undefined'){ mask = '/'; } 
	//if ((!(_IsInteger(date.split(schar)[0]))) || (!(_IsInteger(date.split(schar)[1]))) || (!(_IsInteger(date.split(schar)[2])))){ return false; } 
	/*YAZTO 2009015 para permitir fechas en el formato 0d0myyyy*/
	if (!(_IsInteger(date.split(schar)[2]))){ return false; } 
	
	var day, month, year; 
	switch (mask)
	{ 
		case "ddmmyyyy": 
			day = _check_number_date(date.split(schar)[0]); 
			month = _check_number_date(date.split(schar)[1]); 
			year = _check_number_date(date.split(schar)[2]); 
			break; 
		case "mmddyyyy": 
			day = _check_number_date(date.split(schar)[1]); 
			month = _check_number_date(date.split(schar)[0]); 
			year = _check_number_date(date.split(schar)[2]); 
			break; 
		case "yyyyddmm": 
			day = _check_number_date(date.split(schar)[2]); 
			month = _check_number_date(date.split(schar)[0]); 
			year = _check_number_date(date.split(schar)[1]); 
			break; 
		default : 
			return false; 
	} 
	
	if (!(_ValInMinMax(year,1900,2050)))
	{ return false;} 
	
	if (!(_ValInMinMax(month,1,12)))
	{ return false;} 
	
	if ((month==4) || (month==6) || (month==9) || (month==11)){ 
		if (!(_ValInMinMax(day,1,30))){ 
			return false;}} 
	
		if ((month==1) || (month==3) || (month==5) || (month==7) || (month==8) || (month==10) || (month==12)){ 
			if (!(_ValInMinMax(day,1,31))){ 
				return false;}} 
	
		if (month==2)
		{ 
			if (!(new Date(year,1,29).getDate()==29)){ 
				if (!(_ValInMinMax(day,1,28))){ return false;} 
				} 
			else { 
				if (!(_ValInMinMax(day,1,29)))
				{ return false;}} 
		} 
	
	return true; 
}

function _ValDateInMinMax(date, dmax, dmin, mask, schar)
{ 
	if ((typeof(date)=='undefined') || (typeof(dmin)=='undefined') || (typeof(dmax)=='undefined')){ return false; } 
	
	if ((!(_IsDate(date,mask,schar))) || (!(_IsDate(dmin,mask,schar)) || (!(_IsDate(dmax,mask,schar))))){ return false; } 
	
	var day, month, year, minday, minmonth, minyear,maxday, maxmonth, maxyear; 
	
	switch (mask){ 
		case "ddmmyyyy": 
			day = date.split(schar)[0]; 
			month = date.split(schar)[1]; 
			year = date.split(schar)[2]; 
			minday = dmin.split(schar)[0]; 
			minmonth = dmin.split(schar)[1]; 
			minyear = dmin.split(schar)[2]; 
			maxday = dmax.split(schar)[0]; 
			maxmonth = dmax.split(schar)[1]; 
			maxyear = dmax.split(schar)[2]; 
			break; 
		case "mmddyyyy": 
			day = date.split(schar)[1]; 
			month = date.split(schar)[0]; 
			year = date.split(schar)[2]; 
			minday = dmin.split(schar)[1]; 
			minmonth = dmin.split(schar)[0]; 
			minyear = dmin.split(schar)[2]; 
			maxday = dmax.split(schar)[1]; 
			maxmonth = dmax.split(schar)[0]; 
			maxyear = dmax.split(schar)[2]; 
			break; 
		case "yyyyddmm": 
			day = date.split(schar)[2]; 
			month = date.split(schar)[0]; 
			year = date.split(schar)[1]; 
			minday = dmin.split(schar)[2]; 
			minmonth = dmin.split(schar)[0]; 
			minyear = dmin.split(schar)[1]; 
			maxday = dmax.split(schar)[2]; 
			maxmonth = dmax.split(schar)[0]; 
			maxyear = dmax.split(schar)[1]; 
			break; 
		default : 
			return false; 
		} 
		
	if ((!(year>=minyear)) || (!(year=minmonth)) || (!(month=minday)) || (!(day<=maxday))) 
		{ return false; } 
	
	return true; 
}

function _TextNumberOnly(str) 
{ 
	if ((typeof(str)=='undefined'))
		{ return false; } 
	
	var expr1 = /[a-zA-Z0-9]/; 
	
	if (!expr1.test(str))
		{ return false; } 
	
	return true; 
}

function _TextInMin(str, min) 
{ 
	if ((typeof(str)=='undefined') || (typeof(min)=='undefined'))
		{ return false; } 
	if ((!(str.length = max))) 
		{ return false; } 
	
	return true; 
}

function _TextInMinMax(str, min, max) { if ((typeof(str)=='undefined') || (typeof(min)=='undefined') || (typeof(max)=='undefined')){ return false; } if ((!(str.length = max))) { return false; } return true; }

function _IsEmail(str) { 
	if (typeof(str)=='undefined') 
		{ return false; } 
	
	var expr1 = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/; 
	if (!expr1.test(str))
		{ return false; } 
	
	return true; 
}

function _IsEmailList(str, schar) { if (typeof(str)=='undefined') { return false; } if ((typeof(schar)=='undefined')){ schar = ","; } var array = str.split(schar); for (var email in array) { if (!(_IsEmail(email))){ return false;} } return true; }

function _IsRFC(str) { if ((typeof(schar)=='undefined')){ return false; } var expr1 = /^[A-Za-z]{4}[ |-]{0,1}[0-9]{6}[ |-]{0,1}[0-9A-Za-z]{3}$/; if (!expr1.test(str)){ return false; } return true; }