/**
 * DHTML date validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */
// Declaring valid date character, minimum year and maximum year
var dtCh= "/";
var minYear=1900;
var maxYear=2100;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(dtStr){
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strMonth=dtStr.substring(0,pos1)
	var strDay=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		alert("The date format should be : mm/dd/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter a valid day")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please enter a valid date")
		return false
	}
return true
}

function trim(s)
{   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not a whitespace, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (c != " ") returnString += c;
    }
    return returnString;
}




function checkmiscemail(elem) {
	if (elem.value != '') {
		var emailFilter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
		if (!(emailFilter.test(elem.value))) { 
	  	alert("Please enter a valid email address.");
	  	elem.focus();
	  	return false;
		}
		
		var illegalChars= /[\(\)\<\>\,\;\:\\\/\"\[\]]/;
		if (elem.value.match(illegalChars)) {
	  	alert("The email address contains illegal characters.");
	  	elem.focus();
	  	return false;
		}
	}
	return true;
}





function checkmiscdate(elem) {
var dt=elem;

if (dt.value != '') {
	if (isDate(dt.value)==false){
		dt.focus()
		return false
	}
}
}


function checkmisctime(timeStr) {
// Checks if time is in HH:MM:SS AM/PM format.
// The seconds and AM/PM are optional.

if (!(timeStr == '')) {
	var timePat = /^(\d{1,2}):(\d{2})(:(\d{2}))?(\s?(AM|am|PM|pm))?$/;
	
	var matchArray = timeStr.match(timePat);
	if (matchArray == null) {
	alert("Time is not in a valid format.");
	return false;
	}
	hour = matchArray[1];
	minute = matchArray[2];
	second = matchArray[4];
	ampm = matchArray[6];
	
	if (second=="") { second = null; }
	if (ampm=="") { ampm = null }
	
	if (hour < 0  || hour > 23) {
	alert("Hour must be between 1 and 12. (or 0 and 23 for military time)");
	return false;
	}
	if (hour <= 12 && ampm == null) {
//		if (confirm("Please indicate which time format you are using.  OK = Standard Time, CANCEL = Military Time")) {
//			alert("You must specify AM or PM.");
//			return false;
//		}
	}
	if  (hour > 12 && ampm != null) {
	alert("You can't specify AM or PM for military time.");
	return false;
	}
	if (minute<0 || minute > 59) {
	alert ("Minute must be between 0 and 59.");
	return false;
	}
	if (second != null && (second < 0 || second > 59)) {
	alert ("Second must be between 0 and 59.");
	return false;
	}
	return false;
	}
}



function checkmiscdollar(elem) {
	var dollaramt = elem;
	
	if (dollaramt.value != '') {
		if (!(dollaramt.value.match(/^\$?[0-9]+(,[0-9]{3})*(\.[0-9]{2})?$/))) {
			alert("You must provide a valid dollar amount for the amount you are adding.");
			dollaramt.focus();
			return false;
		}
	}
}

function checkmiscdecimal(elem) {
	var decimalamt = elem;
	
	if (decimalamt.value != '') {
		if (!(decimalamt.value.match(/^-?\d+(\.\d+)?$/))) {
			alert("You must provide a valid decimal amount for the amount you are adding.");
			decimalamt.focus();
			return false;
		}
	}
}

function checkmiscpositivedecimal(elem) {
	var decimalamt = elem;
	if (num.value != '') {
		if (!(decimalamt.value.match(/^-?\d+(\.\d+)?$/))) {
			alert("You must provide a valid decimal amount for the amount you are adding.");
			decimalamt.focus();
			return false;
		}
		else if (decimalamt.value <= 0) {
			alert("You must provide a positive decimal amount greater than zero for this amount .");
			decimalamt.focus();
			return false;
		}
	}
}

function checkmiscinteger(elem) {
	var num = elem;
	
	if (num.value != '') {
		if (!(num.value.match(/^-?\d+$/))) {
			alert("You must provide a valid integer for this amount.");
			num.focus();
			return false;
		}
	}
	
}

function checkmiscpositiveinteger(elem) {
	var num = elem;
	
	if (num.value != '') {
		if ((!(num.value.match(/^-?\d+$/)))) {
			alert("You must provide a valid integer for this amount.");
			num.focus();
			return false;
		}
		else if (num.value <= 0) {
			alert("You must provide a positive integer greater than zero for this amount .");
			num.focus();
			return false;
		}
	}
}

function checklength(elem, len) {
	
	if (elem.value.length > len) {
		alert("You have entered too many characters.  Please do not enter more than " + len + " characters.");
		elem.focus();
		return false;
	}
}

function checkmiscphone(elem){
	// Declaring required variables
	var digits = "0123456789";
	// non-digit characters which are allowed in phone numbers
	var phoneNumberDelimiters = "()- ";
	// characters which are allowed in international phone numbers
	// (a leading + is OK)
	var validWorldPhoneChars = phoneNumberDelimiters + "+";
	// Minimum no of digits in an international phone no.
	var minDigitsInIPhoneNumber = 10;
	var validphone = true;
	var bracket=3;
	var strPhone = elem.value;
	
	strPhone=trim(strPhone);
	if (strPhone.length > 0) {
		if(strPhone.indexOf("+")>1) {
			validphone = false;
		}
		if(strPhone.indexOf("-")!=-1) {
			bracket=bracket+1;
		}
		if(strPhone.indexOf("(")!=-1 && strPhone.indexOf("(")>bracket) {
			validphone = false;
		}
		var brchr=strPhone.indexOf("(");
		if(strPhone.indexOf("(")!=-1 && strPhone.charAt(brchr+2)!=")") {
			validphone = false;
		}
		if(strPhone.indexOf("(")==-1 && strPhone.indexOf(")")!=-1) {
			validphone = false;
		}
		s=stripCharsInBag(strPhone,validWorldPhoneChars);
		if (!(isInteger(s) && s.length >= minDigitsInIPhoneNumber)) {
			validphone = false;
		}
	}
	
	if (validphone == false) {
		alert("Please enter a valid phone number with the area code.");
		elem.focus();
	}
}