function isAlphaSpace(str)
{	
	var valStr = /^[a-zA-Zאטלעש\s]+$/;
	
	if(valStr.exec(str))
		return true;
	else
		return false;
}

function isAlphaNumSpace(str)
{	
	var valStr = /^[a-zA-Zאטלעש0-9\s]+$/;
	
	if(valStr.exec(str))
		return true;
	else
		return false;
}

function isEmail(strEmail)
{
	var valStr = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,3})(\]?)$/;
				 
	if(valStr.exec(strEmail))
		return true;
	else
		return false;
}

function isNum(strNum)
{
	var valStr = /^([1-9]{1}[0-9]{0,}(\.[0-9]{1,2})?|0(\.[0-9]{1,2})?)$/;
	strNum = strNum.replace(',','.');
	
	if(valStr.exec(strNum))
		return true;
	else
		return false;
}

function isInt(strNum)
{
	var valStr = /^[0-9]+$/;
	if(valStr.exec(strNum))
		return true;
	else
		return false;
}

function isInRange(value, min, max)
{
	if((value >= min) && (value <= max))
		return true;
	else
		return false;
}

function isAlphaNum(strAlphaNum)
{
	var valStr = /^[a-zA-Zאטלעש0-9]+$/;

	if(valStr.exec(strAlphaNum))
		return true;
	else
		return false;
}

function isTime(strTime)
{
	var valStr = /^(([0-1][0-9])|([2][0-3])):([0-5][0-9])(:([0-5][0-9]))?$/;
	
	if(valStr.exec(strTime))
		return true;
	else
		return false;
}

function isPrecedentTime(time1, time2)
{
	var time1Array = time1.split(':');
	var time2Array = time2.split(':');
	var time1Mod = time1Array[0] + time1Array[1];
	var time2Mod = time2Array[0] + time2Array[1];
	if (parseInt(time1Mod, 10) < parseInt(time2Mod, 10))
		return true;
	else
		return false;
}

function isDate(strDate)
{
	var strDateArray = strDate.split('/');
	
	var day = strDateArray[0];
	var month = strDateArray[1];
	var year = strDateArray[2];
	if(day != null && month != null && year != null && day.length == 2 && month.length == 2 && year.length == 4)
	{
		var newDate = month + '/' + day + '/' + year;
		var myDate = new Date(newDate);
		var myDateStr = myDate.toString();
		var myDateStrArray = myDateStr.split(' ');
		// IE produce una stringa diversa di myDate.toString
		// rispetto a Firefox e Netscape
		if(navigator.appName.substring(0,9) != "Microsoft")
		{	
			if(myDateStrArray[2] == day && myDateStrArray[3] == year)
				return true;
			else
				return false;
		}
		else
		{
			// IE rappresenta cifre singole nel formato #
			// FireFox e Netscape nel formato 0#
			if(myDateStrArray[2] != null && myDateStrArray[2].length == 1)
				myDateStrArray[2] = '0' + myDateStrArray[2];
			if(myDateStrArray[2] == day && myDateStrArray[5] == year)
				return true;
			else
				return false;
		}
	}
	else
		return false;
}