// ******************************************************************
// This function accepts a string variable and verifies if it is a
// proper date or not. It validates format matching either
// mm-dd-yyyy or mm/dd/yyyy. Then it checks to make sure the month
// has the proper number of days, based on which month it is.

// The function returns true if a valid date, false if not.
// ******************************************************************

function isDate(dateStr) {

    var datePat = /^(\d{1,2})(\/|-)(\d{1,2})(\/|-)(\d{4})$/;
    var matchArray = dateStr.match(datePat); // is the format ok?

    if (matchArray == null) {
        alert("Please enter date as either mm/dd/yyyy or mm-dd-yyyy.");
        return false;
    }

    month = matchArray[1]; // parse date into variables
    day = matchArray[3];
    year = matchArray[5];

    if (month < 1 || month > 12) { // check month range
        alert("Month must be between 1 and 12.");
        return false;
    }

    if (day < 1 || day > 31) {
        alert("Day must be between 1 and 31.");
        return false;
    }

    if ((month==4 || month==6 || month==9 || month==11) && day==31) {
        alert("Month "+month+" doesn't have 31 days!")
        return false;
    }

    if (month == 2) { // check for february 29th
        var isleap = (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0));
        if (day > 29 || (day==29 && !isleap)) {
            alert("February " + year + " doesn't have " + day + " days!");
            return false;
        }
    }
    return true; // date is valid
}


function valemail2(field) {

	var noChar = " /:,;'\"\\";
	var i;
	var badChar;
	var atPos;
	var periodPos;

 		alert("field is " + field);

	for (i=0; i < noChar.length; i++) {
		badChar = noChar.charAt(i);
 		alert("val email i is " + i);
		if (field.indexOf(badChar,0) > -1)
			return false;
	}
 	atPos = field.indexOf("@",1)
	if (atPos == -1) {
		return false;
	}
	if (field.indexOf("@",atPos+1) > -1){
		return false;
	}
	periodPos = field.indexOf(".",atPos)
	if (periodPos == -1){
	}
	if (periodPos+3 > field.length) {
		return false;
	}
	if (field == "") {
		return false;
	}

	return true;
}

function valemail(field) {

	var noChar = " /:,;'\"\\";
	var i;
	var badChar;
	var atPos;
	var periodPos;

	for (i=0; i < noChar.length; i++) {
		badChar = noChar.charAt(i);
		if (field.value.indexOf(badChar,0) > -1)
			return false;
	}
	atPos = field.value.indexOf("@",1)
	if (atPos == -1) {
		return false;
	}
	if (field.value.indexOf("@",atPos+1) > -1){
		return false;
	}
	periodPos = field.value.indexOf(".",atPos)
	if (periodPos == -1){
		return false;
	}
	if (periodPos+3 > field.value.length) {
		return false;
	}
	if (field.value == "") {
		return false;
	}

	return true;
}