var validateSepDec = 'Too much decimal point.';
var validateNotValidNumber = 'The value isnt a valid number.';
var validateInsertMaxDecimalDigits = 'Too much digits after decimal point.';
var validateGroupSepInFract = 'The decimal place cant contain the separator of thousand.';
var validateMaxPrecision = 'Excelled maximum number of permitted figures.';
var validateGroupSepPosition = 'Number not valid, the position of the separator of thousand doesnt respect the settings of the userlanguage.';
var validateMinValue = 'The permitted minim value is';
var validateMaxValue = 'The permitted maximum value is';

var i18n = '';
var i18nGroupSize = '';
/*var i18nGroupSep = '';
var i18nDecimalSep = '';*/

var i18nGroupSep = '.';
var i18nDecimalSep = ',';

function validateNumber(value,precision,scale,minValue,maxValue ){

	//converto il valore in numerico js per verificare che sia effettivamente numerico
	var jsvalue = value.replaceAll('\\'+i18nGroupSep,'');
	jsvalue = jsvalue.replace(i18nDecimalSep,'.');

	//controllo il numero di caratteri decimali
	if(value.lastIndexOf(i18nDecimalSep)!=value.indexOf(i18nDecimalSep)){
		alert(validateSepDec);
		return false;
	}
	
	//controllo che sia convertibile in numero js
	if(isNaN(jsvalue)){
		alert(validateNotValidNumber);
		return false;
	}
	
	//controllo la scala
	if(scale != 'undefined'){
		var valDecIdx = -1;
		if(value.match('\\'+i18nDecimalSep)){
			valDecIdx = value.lastIndexOf(i18nDecimalSep);
			var fract = value.substr(valDecIdx+1)
			if(fract.length>scale){
				alert(validateInsertMaxDecimalDigits);
				return false;
			}
			if(fract.match('\\'+i18nGroupSep)){
				alert(validateGroupSepInFract);
				return false;
			}
		}
	}
	
	//controllo la precisione
	if(precision != 'undefined'){
		var absValue;
		var jsDecIdx = jsvalue.lastIndexOf('.');
		if(jsDecIdx >-1){
			absValue = Math.abs(jsvalue.substr(0,jsDecIdx));
		}else{
			absValue = Math.abs(jsvalue);
		}
		if((absValue.toString()).length > (precision-scale)){
			alert(validateMaxPrecision);
			return false;
		}
	}
	
	//controllo se � rispettato il grouping size
	if(value.match('\\'+i18nGroupSep)){
		var valDecIdx = value.lastIndexOf(i18nDecimalSep);
	 	var intValue = value.substr(0,valDecIdx).replace('+','').replace('-','');
	 	var tokens = intValue.split(i18nGroupSep);
	 	var i;
	 	var token;
		for ((i=tokens.length-1);i>=0;i--){
			token = tokens[i];
			if(i>0){
				if(token.length!=i18nGroupSize){
					alert(validateGroupSepPosition);
					return false;
				}
			}else{
				if(token.length>i18nGroupSize){
					alert(validateGroupSepPosition);
					return false;
				}
			}
		}
	}
	
	//controllo il valore minimo
	if(minValue != 'undefined'){
		var floatVal = parseFloat(jsvalue);
		if(floatVal<minValue){
			alert(validateMinValue + minValue);
			return false;
		}
	}
	
	//controllo il valore massimo
	if(maxValue != 'undefined'){
		var floatVal = parseFloat(jsvalue);
		if(floatVal>maxValue){
			alert(validateMaxValue + maxValue);
			return false;
		}
	}
	
	return true;	
}

function validateNumberNoAlert(value,precision,scale,minValue,maxValue ){

	//converto il valore in numerico js per verificare che sia effettivamente numerico
	var jsvalue = value.replaceAll('\\'+i18nGroupSep,'');
	jsvalue = jsvalue.replace(i18nDecimalSep,'.');

	//controllo il numero di caratteri decimali
	if(value.lastIndexOf(i18nDecimalSep)!=value.indexOf(i18nDecimalSep)){
		return false;
	}
	
	//controllo che sia convertibile in numero js
	if(isNaN(jsvalue)){
		return false;
	}
	
	//controllo la scala
	if(scale != 'undefined'){
		var valDecIdx = -1;
		if(value.match('\\'+i18nDecimalSep)){
			valDecIdx = value.lastIndexOf(i18nDecimalSep);
			var fract = value.substr(valDecIdx+1)
			if(fract.length>scale){
				return false;
			}
			if(fract.match('\\'+i18nGroupSep)){
				return false;
			}
		}
	}
	
	//controllo la precisione
	if(precision != 'undefined'){
		var absValue;
		var jsDecIdx = jsvalue.lastIndexOf('.');
		if(jsDecIdx >-1){
			absValue = Math.abs(jsvalue.substr(0,jsDecIdx));
		}else{
			absValue = Math.abs(jsvalue);
		}
		if((absValue.toString()).length > (precision-scale)){
			return false;
		}
	}
	
	//controllo se � rispettato il grouping size
	if(value.match('\\'+i18nGroupSep)){
		var valDecIdx = value.lastIndexOf(i18nDecimalSep);
	 	var intValue = value.substr(0,valDecIdx).replace('+','').replace('-','');
	 	var tokens = intValue.split(i18nGroupSep);
	 	var i;
	 	var token;
		for ((i=tokens.length-1);i>=0;i--){
			token = tokens[i];
			if(i>0){
				if(token.length!=i18nGroupSize){
					return false;
				}
			}else{
				if(token.length>i18nGroupSize){
					return false;
				}
			}
		}
	}
	
	//controllo il valore minimo
	if(minValue != 'undefined'){
		var floatVal = parseFloat(jsvalue);
		if(floatVal<minValue){
			return false;
		}
	}
	
	//controllo il valore massimo
	if(maxValue != 'undefined'){
		var floatVal = parseFloat(jsvalue);
		if(floatVal>maxValue){
			return false;
		}
	}
	
	return true;
	
	
}