/**
 * 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;

// Javascript function that mimics VB Trim function *********************************
	// **********************************************************************************
	function Trim(strValue) {
	//	remove leading spaces
		while ('' + strValue.charAt(0) == ' ') {
			strValue = strValue.substring(1, strValue.length);
		}
	//	remove trailing spaces
		while ('' + strValue.charAt(strValue.length - 1) == ' ') {
			strValue = strValue.substring(0, strValue.length - 1)	
		}	
		return strValue;
	}

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 ValidateForm(){
	var dt=document.frmSample.txtDate
	if (isDate(dt.value)==false){
		dt.focus()
		return false
	}
    return true
 }
*/

/***********
 * Function submitForm ==> When user clicks the displayed classifieds
 * subcategory, submit the form with the proper subcatId
 * @Param classifed ==> the subcatId (integer)
 **********/
 
function Trim(strValue) {
	//	remove leading spaces
		while ('' + strValue.charAt(0) == ' ') {
			strValue = strValue.substring(1, strValue.length);
		}
	//	remove trailing spaces
		while ('' + strValue.charAt(strValue.length - 1) == ' ') {
			strValue = strValue.substring(0, strValue.length - 1)	
		}	
		return strValue;
	}

 
function submitForm(classified) {

	c = document.getElementById("classifiedsformId");
	
	var i = document.createElement('INPUT');				
	i.setAttribute('type', 'hidden');
	i.setAttribute('name', 'classified');
	i.setAttribute('value', classified);
	
	c.appendChild(i);
	
	c.submit();
}

/***********
 * Function toggle ==> Displays or hides an object (usally a div)
 * @Param elemID ==> the object
 **********/
function toggle(elemID) {
	//show = new NodeList();
	show = document.getElementById(elemID);
	if (show.style.display == 'none') {
		show.style.display = 'block';
	} 
	else (show.style.display = "none");						
}

/***********
 * Function chkdate ==> Checks the date
 * @Param objName ==> the form input object (not it's value, i.e., not 'objName.value')
 * Returns ==> true if valid date, false otherwise
 **********/
function chkdate(objName) {
	var strDatestyle = "US"; //United States date style
	//var strDatestyle = "EU";  //European date style
	var strDate;
	var strDateArray;
	var strDay;
	var strMonth;
	var strYear;
	var intday;
	var intMonth;
	var intYear;
	var booFound = false;
	var datefield = objName;
	var strSeparatorArray = new Array("-"," ","/",".");
	var intElementNr;
	var err = 0;
	var strMonthArray = new Array(12);
	strMonthArray[0] = "Jan";
	strMonthArray[1] = "Feb";
	strMonthArray[2] = "Mar";
	strMonthArray[3] = "Apr";
	strMonthArray[4] = "May";
	strMonthArray[5] = "Jun";
	strMonthArray[6] = "Jul";
	strMonthArray[7] = "Aug";
	strMonthArray[8] = "Sep";
	strMonthArray[9] = "Oct";
	strMonthArray[10] = "Nov";
	strMonthArray[11] = "Dec";
	strDate = (datefield.value);
	if (strDate.length < 1) {
	return false;
	}
	for (intElementNr = 0; intElementNr < strSeparatorArray.length; intElementNr++) {
	if (strDate.indexOf(strSeparatorArray[intElementNr]) != -1) {
	strDateArray = strDate.split(strSeparatorArray[intElementNr]);
	if (strDateArray.length != 3) {
	err = 1;
	return false;
	}
	else {
	strDay = strDateArray[0];
	strMonth = strDateArray[1];
	strYear = strDateArray[2];
	}
	booFound = true;
	   }
	}
	if (booFound == false) {
	if (strDate.length>5) {
	strDay = strDate.substr(0, 2);
	strMonth = strDate.substr(2, 2);
	strYear = strDate.substr(4);
	   }
	}
	if (strYear.length == 2) {
	strYear = '20' + strYear;
	}
	// US style
	if (strDatestyle == "US") {
	strTemp = strDay;
	strDay = strMonth;
	strMonth = strTemp;
	}
	intday = parseInt(strDay, 10);
	if (isNaN(intday)) {
	err = 2;
	return false;
	}
	intMonth = parseInt(strMonth, 10);
	if (isNaN(intMonth)) {
	for (i = 0;i<12;i++) {
	if (strMonth.toUpperCase() == strMonthArray[i].toUpperCase()) {
	intMonth = i+1;
	strMonth = strMonthArray[i];
	i = 12;
	   }
	}
	if (isNaN(intMonth)) {
	err = 3;
	return false;
	   }
	}
	intYear = parseInt(strYear, 10);
	if (isNaN(intYear)) {
	err = 4;
	return false;
	}
	if (intMonth>12 || intMonth<1) {
	err = 5;
	return false;
	}
	if ((intMonth == 1 || intMonth == 3 || intMonth == 5 || intMonth == 7 || intMonth == 8 || intMonth == 10 || intMonth == 12) && (intday > 31 || intday < 1)) {
	err = 6;
	return false;
	}
	if ((intMonth == 4 || intMonth == 6 || intMonth == 9 || intMonth == 11) && (intday > 30 || intday < 1)) {
	err = 7;
	return false;
	}
	if (intMonth == 2) {
	if (intday < 1) {
	err = 8;
	return false;
	}
	if (LeapYear(intYear) == true) {
	if (intday > 29) {
	err = 9;
	return false;
	}
	}
	else {
	if (intday > 28) {
	err = 10;
	return false;
	}
	}
	}
	if (strDatestyle == "US") {
	datefield.value = strMonthArray[intMonth-1] + " " + intday+" " + strYear;
	}
	else {
	datefield.value = intday + " " + strMonthArray[intMonth-1] + " " + strYear;
	}
	return true;
	}
	function LeapYear(intYear) {
	if (intYear % 100 == 0) {
	if (intYear % 400 == 0) { return true; }
	}
	else {
	if ((intYear % 4) == 0) { return true; }
	}
	return false;
}

/************************************************
 * Function DateRangeCheck ==> Checks a range of
 * of two dates to determine if the latter date
 * actually occurs after the starting date.
 * @Params ==> 	from: text input object
 *			   	to: text input object
 ***********************************************/
function dateRangeCheck(from, to) {
	if (Date.parse(from.value) <= Date.parse(to.value)) {
		return true;
	}
	else {
		if (from.value == "" || to.value == "") {
			alert("Both dates must be entered.");
			from.focus();
			return false;
		}
		else {			 
			alert('Either the date format is incorrect,\nor the second date must occur after the first date.');
			from.focus();
			return false;
		}
	}
}


/************************************************
 * Function validateZipcode
 ***********************************************/
function checkZipcode(field) {
	var valid = "0123456789-";
	var hyphencount = 0;
	
	if (field.length!=5 && field.length!=10) {
		alert("Please enter your 5 digit or 5 digit+4 zip code.");
		return false;
	}
	for (var i=0; i < field.length; i++) {
		temp = "" + field.substring(i, i+1);
		if (temp == "-") hyphencount++;
		if (valid.indexOf(temp) == "-1") {
			alert("Invalid characters in your zip code.  Please try again.");
		return false;
		}
		if ((hyphencount > 1) || ((field.length==10) && ""+field.charAt(5)!="-")) {
			alert("The hyphen character should be used with a properly formatted 5 digit+four zip code, like '12345-6789'.   Please try again.");
			return false;
	   }
	}
	return true;
}


/************************************************
 * Function checkNumber ==> Checks a string to 
 * determine whether all the characters are num-
 * erical digits.
 * @Params ==>	strString: a string literal
 * Returns ==> true if string consists only of #s,
 * false otherwise.
 ***********************************************/
function checkNumber(strString) {	
	var strValidChars = "0123456789";
	var strChar;
	var blnResult = true;
	
	if(strString == "") {
		blnResult = false;
	}
	else {
		for (i = 0; i < UBound(strString) && blnResult == true; i++) {
			strChar = strString.charAt(i);
			if (strValidChars.indexOf(strChar) == -1) {
				blnResult = false;				
			}
		}
	}
	return blnResult;
}

/************************************************
 * Function validatePhone
 ************************************************/
function validatePhone(element) {
	var dash_index = element.value.indexOf("-");
	if (dash_index <= 1) {
		return false;
	}
}


/************************************************
 * Function validateEmail
 ***********************************************/
function validateEmail(element) {
	var at_index = element.value.indexOf("@");
	var dot_index = element.value.indexOf(".");
	if ((at_index == -1) || (dot_index == -1)) {
		element.focus();
		return false;
	}
}

/************************************************
 * Function validateURL
 ***********************************************/
function validateURL(element) {
	//var at_index = element.value.indexOf("@");
	var dot_index = element.value.indexOf(".");
	if ((dot_index == -1)) {
		element.focus();
		return false;
	}
}

function DefCursor( id, b )
	{
		var obj;
		obj = document.all( id ).style;
		if( b )
		{
			obj.cursor = "hand";
		} 
		else
		{
			obj.cursor = "default";
		}
	}