// Check if the value is a number
function isnumber(data){
	if(isNaN(data))
		return false;
	else
		return true;
}

// Check if the value is a number between min and max
function isvalidrange(data, min, max){
	if(isnumber(data)){
		if(data >= min && data <=max)
			return true;
		else
			return false
	}
	return false;
}

// Check if the value is a string between min & max characters in length
function isvalidlength(data, minlen, maxlen){
	if(data.length >= minlen && data.length <= maxlen)
		return true;
	else
		return false;
}

// Check if the value is a valid date
function isdate(data){
	return false;
}