// function prevents unallowed characters
var permitkeypress=false;
function chkkeydn(e) {
	var keynum;
	if (window.event) keynum=e.keyCode; // IE
	else if (e.which) keynum=e.which;   // Netscape/Firefox/Opera
	permitkeypress=!(keynum==8 || keynum==9 || keynum==13 || (keynum>34 && keynum<40) || keynum==46);
}
function chkinput(e,inttype) {
	if (permitkeypress) {
		var keynum;
		if (window.event) keynum=e.keyCode; // IE
		else if (e.which) keynum=e.which;   // Netscape/Firefox/Opera
		var keychar=String.fromCharCode(keynum);
		switch(inttype) {
			case 1: //alpha only
				return !/[^a-zA-Z ]/.test(keychar);
			case 2: //alpha numeric
				return !/[^a-zA-Z 0-9\-]/.test(keychar);
			case 3: //whole number
				return !/[^0-9]/.test(keychar);
			case 4: //real number
				return !/[^0-9\.]/.test(keychar);
			case 5: //ssn, zipcode
				return !/[^0-9\-]/.test(keychar);
			case 6: //phone
				return !/[^0-9 \-\(\)]/.test(keychar);
			default:
				return false;
		}
	}
}
function fieldstrip(fldobj,fldtype) {
	var flddata=trim(fldobj.value);
	var iLen=String(flddata).length;
	var fmt='';
	if(iLen>0) {
		switch(fldtype) {
			case 0: //numbers
				fmt=flddata.replace(/[^0-9]+/g,'');
				break;
			case 1: //floating point numbers
				fmt=flddata.replace(/[^0-9\.]+/g,'');
				break;
			case 2: //characters only
				fmt=flddata.replace(/[^a-zA-Z ]+/g,'');
				break;
			case 3: //alpha numeric
				fmt=flddata.replace(/[^a-zA-Z 0-9]+/g,'');
				break;
			default:
				fmt=flddata;
		}
	}
	if (document.selection) {
		var rng=document.selection.createRange();
		fldobj.value=fmt;
		rng.select();
	} else {
		fldobj.value=fmt;
	}
}
function fieldformat(fldobj,fldtype) {
	switch(fldtype) {
		case 0:
			fieldstrip(fldobj,0);
			break;
		case 1:
			fieldstrip(fldobj,1);
			break;
		case 2:
			fieldstrip(fldobj,0);
			break;
		case 3:
			fieldstrip(fldobj,0);
			break;
		case 4:
			fieldstrip(fldobj,0);
			break;
		default:
			fieldstrip(fldobj,2);
	}
	var flddata=fldobj.value;
	var iLen=String(flddata).length;
	var fmt=flddata;
	if(iLen>0) {
		switch(fldtype) {
			case 0: //whole number. adds commas where needed
				fmt=formatCommas(flddata);
				break;
			case 1: //floating number. adds commas and decimals where needed
				fmt=formatCommas(flddata);
				break;
			case 2: //phone number
				if(iLen>=10) {
					fmt='('+Left(flddata,3)+') '+Mid(flddata,3,3)+'-'+Mid(flddata,6,4)
					if(iLen>10) fmt+=' x'+Mid(flddata,10,iLen);
				}
				break;
			case 3: //ssn
				if(iLen==9) {
					fmt=Left(flddata,3)+'-'+Mid(flddata,3,2)+'-'+Right(flddata,4)
				}
				break;
			case 4: //zipcode
				if(iLen>=5) {
					fmt=Left(flddata,5)
					if (iLen>5) fmt+='-'+Mid(flddata,5,iLen);
				}
				break;
			default: //no special formatting
				fmt=flddata;
		}
	}
	fldobj.value=fmt;
}
function formatCommas(answer) {
	var str=String(answer);
	var objRegExp = new RegExp('(-?[0-9]+)([0-9]{3})');
//check for match to search criteria
	while (objRegExp.test(str)) {
//replace original string with first group match, a comma, then second group match
		str=str.replace(objRegExp, '$1,$2');
	} return str;
}
function formatMoney(answer) {
	var objRegExp = new RegExp('(-?[0-9]+)([0-9]{3})');
//check for match to search criteria
	while (objRegExp.test(answer)) {
//replace original string with first group match, a comma, then second group match
		answer=answer.replace(objRegExp, '$1,$2');
	}
	return answer;
}
function cnvrt2Upper(objField) {
	var str=objField.value;
	objField.value=str.toLowerCase().replace(/\b[a-z]/g, cnvrt);
	function cnvrt() {
		return arguments[0].toUpperCase();
	}
}

function validEmail(objField,msgID) {
	var value=trim(objField.value);
	if (value!='') {
		if(!validEmail_v1(value)) {
			errorMessage('Please verify the E-mail Address "'+value+'" is correct.',msgID);
		}
	}
}
function validPhone(objField,msgID) {
	var value=trim(objField.value);
	if (value!='') {
		if (!value.match(/^(\(?[0-9]{3}(\)|\-|\.)?( )?[0-9]{3}(\-|\.| )?[0-9]{4})$/)) {
			errorMessage('Please verify the Phone Number "'+value+'" is correct.',msgID);
		}
	}
}
function errorMessage(strText,objID) {
	document.getElementById(objID).innerHTML=strText;
	colorFade(objID,'background','400000','ffffff',50,15);
}

function checknum(fldobj) { //forces empty values to zero
	var n2s=trim(fldobj.value);
	if (n2s.length==0 || n2s=='NaN' || isNaN(n2s)) return 0;
	return parseInt(n2s);
}
function checkfloat(fldobj) { //forces empty values to zero
	var n2s=trim(fldobj.value);
	if (n2s.length==0 || n2s=='NaN' || isNaN(n2s)) return 0;
	return parseFloat(n2s);
}

function validEmail_v1(strEmail) {
	var value=trim(strEmail);
	if (value != '' && value.toLowerCase() != 'none') {
		validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
		if (value.search(validRegExp) == -1) {
			return false;
		}
	}
	return true;
}

//function verifyEmail(semail) {
//	if (semail==null) return false;
//	var apos=semail.indexOf('@'),dotpos=semail.lastIndexOf('.');
//	return (apos<1 || dotpos-apos<2);
//}

function trim(str) { //removes leading and trailing spaces
	return str.replace(/^\s*|\s*$/g,'');
}
function Left(str,l) {
	if (l<=0) return '';
	else if (l>String(str).length) return str;
	else return String(str).substring(0,l);
}
function Mid(str,s,l) {
	var iLen = String(str).length;
	if (s<0 || l<=0) return '';
	else if (s+l>iLen) return String(str).substring(s);
	else return String(str).substring(s,s+l);
}
function Right(str,l) {
	var iLen=String(str).length;
	if (l<=0) return '';
	else if (l>iLen) return str;
	else return String(str).substring(iLen,iLen-l);
}

/*
 * Date Format 1.2.3
 * (c) 2007-2009 Steven Levithan <stevenlevithan.com>
 * MIT license
 *
 * Includes enhancements by Scott Trenda <scott.trenda.net>
 * and Kris Kowal <cixar.com/~kris.kowal/>
 *
 * Accepts a date, a mask, or a date and a mask.
 * Returns a formatted version of the given date.
 * The date defaults to the current date/time.
 * The mask defaults to dateFormat.masks.default.
 */

var dateFormat = function () {
	var	token = /d{1,4}|m{1,4}|yy(?:yy)?|([HhMsTt])\1?|[LloSZ]|"[^"]*"|'[^']*'/g,
		timezone = /\b(?:[PMCEA][SDP]T|(?:Pacific|Mountain|Central|Eastern|Atlantic) (?:Standard|Daylight|Prevailing) Time|(?:GMT|UTC)(?:[-+]\d{4})?)\b/g,
		timezoneClip = /[^-+\dA-Z]/g,
		pad = function (val, len) {
			val = String(val);
			len = len || 2;
			while (val.length < len) val = "0" + val;
			return val;
		};

	// Regexes and supporting functions are cached through closure
	return function (date, mask, utc) {
		var dF = dateFormat;

		// You can't provide utc if you skip other args (use the "UTC:" mask prefix)
		if (arguments.length == 1 && Object.prototype.toString.call(date) == "[object String]" && !/\d/.test(date)) {
			mask = date;
			date = undefined;
		}

		// Passing date through Date applies Date.parse, if necessary
		date = date ? new Date(date) : new Date;
		if (isNaN(date)) throw SyntaxError("invalid date");

		mask = String(dF.masks[mask] || mask || dF.masks["default"]);

		// Allow setting the utc argument via the mask
		if (mask.slice(0, 4) == "UTC:") {
			mask = mask.slice(4);
			utc = true;
		}

		var	_ = utc ? "getUTC" : "get",
			d = date[_ + "Date"](),
			D = date[_ + "Day"](),
			m = date[_ + "Month"](),
			y = date[_ + "FullYear"](),
			H = date[_ + "Hours"](),
			M = date[_ + "Minutes"](),
			s = date[_ + "Seconds"](),
			L = date[_ + "Milliseconds"](),
			o = utc ? 0 : date.getTimezoneOffset(),
			flags = {
				d:    d,
				dd:   pad(d),
				ddd:  dF.i18n.dayNames[D],
				dddd: dF.i18n.dayNames[D + 7],
				m:    m + 1,
				mm:   pad(m + 1),
				mmm:  dF.i18n.monthNames[m],
				mmmm: dF.i18n.monthNames[m + 12],
				yy:   String(y).slice(2),
				yyyy: y,
				h:    H % 12 || 12,
				hh:   pad(H % 12 || 12),
				H:    H,
				HH:   pad(H),
				M:    M,
				MM:   pad(M),
				s:    s,
				ss:   pad(s),
				l:    pad(L, 3),
				L:    pad(L > 99 ? Math.round(L / 10) : L),
				t:    H < 12 ? "a"  : "p",
				tt:   H < 12 ? "am" : "pm",
				T:    H < 12 ? "A"  : "P",
				TT:   H < 12 ? "AM" : "PM",
				Z:    utc ? "UTC" : (String(date).match(timezone) || [""]).pop().replace(timezoneClip, ""),
				o:    (o > 0 ? "-" : "+") + pad(Math.floor(Math.abs(o) / 60) * 100 + Math.abs(o) % 60, 4),
				S:    ["th", "st", "nd", "rd"][d % 10 > 3 ? 0 : (d % 100 - d % 10 != 10) * d % 10]
			};

		return mask.replace(token, function ($0) {
			return $0 in flags ? flags[$0] : $0.slice(1, $0.length - 1);
		});
	};
}();

// Some common format strings
dateFormat.masks = {
	"default":      "ddd mmm dd yyyy HH:MM:ss",
	shortDate:      "m/d/yy",
	mediumDate:     "mmm d, yyyy",
	longDate:       "mmmm d, yyyy",
	fullDate:       "dddd, mmmm d, yyyy",
	shortTime:      "h:MM TT",
	mediumTime:     "h:MM:ss TT",
	longTime:       "h:MM:ss TT Z",
	isoDate:        "yyyy-mm-dd",
	isoTime:        "HH:MM:ss",
	isoDateTime:    "yyyy-mm-dd'T'HH:MM:ss",
	isoUtcDateTime: "UTC:yyyy-mm-dd'T'HH:MM:ss'Z'"
};

// Internationalization strings
dateFormat.i18n = {
	dayNames: [
		"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat",
		"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"
	],
	monthNames: [
		"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
		"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"
	]
};

// For convenience...
Date.prototype.format = function (mask, utc) {
	return dateFormat(this, mask, utc);
};