/*----------------------------------------------------------------------------\
|                            EZ2CY edits - Dec 4, 04                     			      |
|                            12/28/04    Revised to $10.00 low limit on  	      |
|                            12/29/04    Eliminated low limit on price edit               |
|-----------------------------------------------------------------------------*/

function isArray(a) {
    return isObject(a) && a.constructor == Array;
}

function isBoolean(a) {
    return typeof a == 'boolean';
}

function isEmpty(o) {
    var i, v;
    if (isObject(o)) {
        for (i in o) {
            v = o[i];
            if (isUndefined(v) && isFunction(v)) {
                return false;
            }
        }
    }
    return true;
}

function isFunction(a) {
    return typeof a == 'function';
}

function isNull(a) {
    return typeof a == 'object' && !a;
}

function isNumber(a) {
	for (i = 0; i < a.length; i++) {
        ch = a.substring(i, i+1);
        if (ch < "0" || ch > "9")
          {return false;}
    }
    return true;
}

function isPrice(a)	{
	var i, b, c;
	for (i = 0; i < a.length; i++) {
        ch = a.substring(i, i+1);
        if (!((ch <= "9" && ch >= "0") || ch == "." || ch == ","))
          {return false;}
    }
	b = a.split(".", a.length);
	if (b.length > 2) {return false;}
	c = b[0].split(",", b[0].length);
	if (c.length > 2) {return false;}
	if ((c.length == 2) && (c[1].length != 3))
		{return false;}
	return true;
}

function isObject(a) {
    return (a && typeof a == 'object') || isFunction(a);
}

function isString(a) {
    return typeof a == 'string';
}

function isUndefined(a) {
    return typeof a == 'undefined';
}

function isNotWhite(c)	{
	switch (c)	
	{ 
		case ' ':
		case '\t':
		case '\r':
		case '\n':
			return false;
			break;
		
		default:
			return true;
	}
}

function rtrim(argvalue) {
	while (1) {
		if (isNotWhite(argvalue.substring(argvalue.length - 1, argvalue.length)))
			break;
		argvalue = argvalue.substring(0, argvalue.length - 1);
	}
	return argvalue;
}											// end function rtrim()

function ltrim(argvalue) {
	while (1) {
		if (isNotWhite(argvalue.substring(0, 1)))
			break;
		argvalue = argvalue.substring(1, argvalue.length);
	}
	return argvalue;
}											// end function ltrim()
		
function trim(argvalue) {	// drops leading and trailing spaces
	if (typeof (argvalue) !="string") {return argvalue;} 
	var temp = rtrim(argvalue);
	return ltrim(temp);
}													// end function trim()

function strim(argvalue, max) {	// drops leading and trailing spaces, trims to size
	if (typeof (argvalue) !="string") {return argvalue;} 
	var temp = trim(argvalue);
	if (typeof(max) != "number") {return temp;}
	return temp.slice(0, max);
}

function isCurrency(Curr) {
	var temp = Curr;				
//	if (temp.substr (0, 1) == "$") {temp = Curr.substr(1, Curr.length-1)}	// allow and disregard leading $
	return /^\d{1,3}(,\d{3})*\.\d\d$|^\d+\.\d\d$/.test(temp);
	}

function removeCurrency( strValue ) {		// removes currency punctuation
  var objRegExp = /\(/;
  var strMinus = '';
  objRegExp = /\)|\(|[,.]/g;
  strValue = strValue.replace(objRegExp,'');
  return strMinus + strValue;
	}					// end function
	
function addCurrency( val ) {		// rounds and adds .xx
  var price_in_cents = Math.round(100 * val);
  var cents = price_in_cents % 100;
  var dollars = (price_in_cents - cents) / 100;
  var stringcents = cents.toString();
  while (stringcents.length < 2)  {
  	stringcents = "0" + stringcents;
  }
  var rval = "$" + dollars + "." + stringcents;
  return rval;
}					// end function

function roundToCents( val ) {		// rounds
	return (Math.round(100*val) / 100);
}

function isValidPrice(price, reqdsym){
	var lowlimit = 1;								//		12/28/04
	var uplimit = 100000;
	var reqd = (reqdsym=="*");
	if (price.value.length==0) {
		if (reqd) { 
			return false;
		}	
		else {
			return true;
		}
	}
	var pstring = price.value;
	if (!isPrice(pstring)) {
		return false;
	}
	var pstringa = pstring.split(",", pstring.length); //Javascript cannot parse with a comma
	pstring = pstringa.join("");
	var p = parseFloat(pstring);
	if (p == NaN)	{
		return false;
	}
	if (reqd && ((p > uplimit) || (p < lowlimit))) {  
		return false;
	}
	return true;
}				// end function


function isValidHullNumber(hullnumber, reqdsym){
	var reqd = (reqdsym=="*");
	if (hullnumber.length==0) {if (reqd) {return false;}	else {return true;}}
	if (hullnumber.length == 12) {return true;} 
	else 
		{
			alert("Hull Number must be exactly 12 characters long");
			return false;
		}
	}												// end function isValidHullNumber
	

function isValidInvoiceNumber(invnumber, reqdsym){
	var reqd = (reqdsym=="*");
	if (invnumber.value.length > 20) {return false;}
	if ((reqd) && (invnumber.value.length == 0)) {return false;}
	return true;	
	}												// end function isValidInvoiceNumber
	
function isValidZip(zipnumber, reqdsym){			// only check length as non-US zips may not be numbers
	var reqd = (reqdsym=="*");
	if (zipnumber.value.length > 12) {return false;}
	if ((reqd) && (zipnumber.value.length == 0)) {return false;}
	return true;	
	}												// end function isValidZip


function isValidNumber(strNumber, reqdsym){				// requires object
//alert (strNumber.name + " " +(typeof  strNumber) + " " + strNumber.value  + " " + strNumber.value.length  + " 135 " + ( reqdsym))
	var reqd = (reqdsym=="*");
	if (reqd) {
		if (typeof (strNumber.value.length) =="undefined") 	{ return false;}
		if (strNumber.value.length == 0) 				{ return false;}
		if (isNumber(strNumber.value))					{return true}
	}
	if (!reqd) {
		if (typeof (strNumber.value.length) =="undefined") 	{ return true;}
		if (strNumber.value.length == 0) 				{ return true;}
	}
	if ((strNumber.value.length > 0) && (isNumber(strNumber.value))) {return true;} 
	else {return false;}
}			// end function isValidNumber
	
function isValidBoatYear(strNumber, reqdsym)	{
	var year = parseInt(strNumber.value)
//alert (strNumber.name + " " +(typeof  strNumber) + " " + strNumber.value  + " " + strNumber.value.length  + " rqd " + ( reqdsym) + " year parsed " + year);
	var reqd = (reqdsym=="*");
	var now = new Date();
	var nextYear = now.getFullYear() + 1;
	if ((reqd) || (strNumber.value.length > 0)) {
		if (isNaN(year)) 	{return false;}
		if ((year < 1900) || (year > nextYear))	{return false;}
		return true;
	}
	return true;
}											

function isValidPhoneNo(strPhoneNo, reqdsym) {
	var reqd = (reqdsym=="*");
	if (reqd || (strPhoneNo.length > 0))	{
		if (isNumber(strPhoneNo) && (strPhoneNo.length >= 10))	{
			return true;
		}
		else	{
			return false
		}
	}
	return true;
	}							// end function isValidPhoneNo()


function isValidTelephone(strPhoneNo, reqdsym) {
	var reqd = (reqdsym=="*");
	if (reqd || (strPhoneNo.length > 0))	{
		var i, ch, num;
		num=0;
		for (i = 0; i < strPhoneNo.length; i++) {
        	ch = strPhoneNo.substring(i, i+1);
        	if (ch >= "0" && ch <= "9")	{
        		num++;
        	}
        }
        if (num >= 10)	{
        	return true;
        }
        else	{
        	return false;
        }
    }
    return true;
}	

	
	
													
function isValidEmail(strEmail, reqdsym){						//function to check valid email address
	var reqd = (reqdsym=="*");
	if (strEmail.length==0) {
		if (reqd) {return false;} else {return true;}
	}
	validRegExp = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
//	validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
	if (strEmail.search(validRegExp) == -1)  					// search email text for regular exp matches
		{
//			alert("email is invalid format");
			return false;	}
    return true;
}										// end function isValidEmail()

// Function to be used with date selector ASP function
function isDateValid(d, m, y)	{
	var errMsg = ""
	if ((m < 1) || (m > 12))	{
	return "The month number is out of range\n";
	}
	if ((d < 1) || (d > 31))	{
	return "The day number is out of range\n";
	}
	if (y < 0)	{
	return "The year is out of range\n";
	}
	if (d > 28)
	{
		if (m == 2)
		{
			if (y % 4 == 0 && d > 29)
			{
				errMsg = "February has only 29 days in the selected year\n";
			}
			else if (y % 4 != 0 && d > 28)
			{
				errMsg = "February has only 28 days in the selected year\n";
			}
		}
		else if ((m==4) || (m==6) || (m==9) || (m==11))
		{
			if (d > 30)
			{
				errMsg = "This month only has 30 days\n";
			}
		}
	}
	return errMsg;
}

function isInstallationDateValid(d, m, y)	{
	var errMsg = isDateValid(d, m, y);
	if (errMsg != "")	{
		return errMsg;
	}
	var iDate = new Date(y, m-1, d);
	var now = new Date();
	var then = new Date(2002, 11, 31);
// alert("idate is " + iDate + " now is " + now + " then is " + then);
	var oneWeek = 7 * 24 * 60 * 60 * 1000;
	if ((iDate.valueOf() < then.valueOf()) || (iDate.valueOf() > (now.valueOf() + oneWeek)))	{
		errMsg = "Date (must be after 2002 and no more than 1 week in the future)\n";
	}
	return errMsg;
}

function isRepairDateValid(d, m, y, iDate)	{
	var errMsg = isInstallationDateValid(d, m, y);
	if (errMsg != "")	{
		return errMsg;
	}
	var rDate = new Date(y, m-1, d);
// alert("idate is " + iDate + " rDate is " + rDate);
	if (rDate.valueOf() < iDate.valueOf())	{
		errMsg = "Repair Date (must not be before installation date)\n";
	}
	return errMsg;
}

function isValidDate(dateStr, reqdsym) {
//	alert (dateStr + " " +typeof dateStr + " " +dateStr.length +" 158");
	var reqd = (reqdsym=="*")
	if (dateStr.length==0) {
		if (reqd) {return false;}	else {  return true;}
	}
//	alert ("163")
	var myempty = "/"+"/";

	if (dateStr==myempty) {
		if (reqd) {return false;} else { return true;}
	}
//	alert (dateStr + " 169")
	var datePat = /^(\d{1,2})(\/|-)(\d{1,2})(\/|-)(\d{2,4})$/;
	var matchArray = dateStr.match(datePat); 			// format OK?

	if (matchArray == null) {
//	alert("Please enter date as  mm/dd/yyyy.");
		return false;}
	month = matchArray[1];  		// parse date into variables
	day = matchArray[3];
	year = matchArray[5];
//	alert (year)
	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;	}
		}		// end (month == 2)
	var todaydate=new Date();				// begin year handling
	var temp  = "" + todaydate.getYear();
// alert("temp year = '" + temp + "'");
	if (temp.length == 2) {
		var twodigcurryear = temp;
		var fourdigcurryear =  "" + "20" + twodigcurryear;
		}
	if (temp.length == 3) {
		var twodigcurryear = temp.substring(1,3);
		var fourdigcurryear =  "" + "20" + twodigcurryear;
		}
	else {
		var fourdigcurryear = temp;
		var twodigcurryear = temp.substring(2,4);
		}										// whewwwwwwwwww!
// alert ("year input is '" + year + "' two digit year is '" +  twodigcurryear + "'");
		if (year.length == 2) {
			if ((year > twodigcurryear) && (year < 97) ) { 
				alert("Only years from 97 to this year are accepted");
				return false;
			}
		}
		else {
			if ((year > fourdigcurryear) || (year < 1997)) { 
				alert("Only years from 1997 to this year are accepted");
				return false;
			}
		}

	return true;  									// date is valid
}												// end function

/**
 * 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 err = "";
	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){
		err = "The date format should be : mm/dd/yyyy";
		return err;
	}
	if (strMonth.length<1 || month<1 || month>12){
		err = "Please enter a valid month";
		return err;
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		err = "Please enter a valid day";
		return err;
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		err = "Please enter a valid 4 digit year between "+minYear+" and "+maxYear;
		return err;
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		err = "Please enter a valid date";
		return err;
	}
	return err;
}