/**********************************************************************************/
/* Form Validation: Begin													      */
/**********************************************************************************/

function IsEmpty(obj, obj_type)
{
	if (obj_type == "text" ||obj_type == "textarea")	{
		var objValue;
		
		objValue = obj.value.replace(/\s+$/,"");
		
		if (objValue.length == 0) {
			obj.focus();
			return true;
		} else {
			return false;
		}
	} else if (obj_type == "select") {
		for (i=0; i < obj.length; i++) {
			if (obj.options[i].selected) {
				if(obj.options[i].value == "") {
					obj.focus();
					return true;
				} else {
					return false;
				}
			}
			
		}
		return true;	
	} else if (obj_type == "radio" || obj_type == "checkbox") {
		if (!obj[0] && obj) {
			if (obj.checked) {
				return false;
			} else {
				obj.focus();
				return true;	
			}
		} else {
			for (i=0; i < obj.length; i++) {
				if (obj[i].checked) {
					return false;
				}
			}
			obj[0].focus();
			return true;
		}
	} else {
		return false;
	}
}

function InLengthRange(object_value, min_value, max_value)
{
	
	if (object_value == null) {
		return true;
	}

	if (min_value == null) {
		min_value = 0;
	}
	
	if (typeof object_value == "string")
	{
		var temp_object_value = object_value;
		var ch = temp_object_value.substring(0, 1);
		while (ch == " ") { // Check for spaces at the beginning of the string
			temp_object_value = temp_object_value.substring(1, temp_object_value.length);
			ch = temp_object_value.substring(0, 1);
		}
		ch = temp_object_value.substring(temp_object_value.length-1, temp_object_value.length);
		while (ch == " ") { // Check for spaces at the end of the string
			temp_object_value = temp_object_value.substring(0, temp_object_value.length-1);
			ch = temp_object_value.substring(temp_object_value.length-1, temp_object_value.length);	
		}
		
		if (max_value == null) {
			if(temp_object_value.length >= min_value) {
				return true;
			} else {
				return false;
			}
		}
		
		if(temp_object_value.length >= min_value && temp_object_value.length <= max_value) {
			return true;
		} else {
			return false;
		}		
		
	}
	
	if (max_value == null) {
		if (object_value.length >= min_value) {
			return true;
		} else {
			return false;
		}
	}
	
	if (object_value.length >= min_value && object_value.length <= max_value) {
		return true;
	} else {
		return false;
	}

}

function InValueRange(object_value, min_value, max_value)
{
	
	if (object_value == null) {
		return true;
	}
	else {
		if (object_value == '')
			return true;
	}

	if (min_value == null) {
		min_value = 0;
	}
	
	

	if (max_value == null) {
		if (object_value >= min_value) {
			return true;
		} else {
			return false;
		}
	}
	
	if (object_value >= min_value && object_value <= max_value) {
		return true;
	} else {
		return false;
	}

}


function TestNumberRange(object_value, min_value, max_value)
{
	// check minimum
	if (min_value != null) {
		if (object_value < min_value) {
			return false;
		}
	}
		
	// check maximum
	if (max_value != null) {
		if (object_value > max_value) {
			return false;
		}
	}
	//All tests passed, so...
	return true;
}

function IsValidDate(month, day, year) {
	var blnRet;

	if (month ==  "" || day == "" || year == "") {
		return true;
	}

	day = parseInt(day)
	month = parseInt(month)
	year = parseInt(year)
	

	if( (day >= 1 && day <= 31) && 
		(month >=1 && month <= 12) && 
		(year > 0) ) {
		blnRet = true;
		switch(month) {
			case 2:
				
				if(day > 28) {
					// check for leap years
					if( ((year % 4 == 0) && (year % 100 != 0)) ||
						(year % 400 == 0) ) {
						if(day > 29) {
							blnRet =  false;
						}
					} else {
						blnRet = false;
					}
				}
				break;
			case 4:
			case 6:
			case 9:
			case 11:
				if(day > 30) {
					blnRet = false;
				}
				break;
			default:
				break;
		}
	} else {
		blnRet = false;
	}
		
	return blnRet;
}

function IsInteger(object_value)
{
    if (object_value.length == 0){
		return true;
	}

	var decimal_format = ".";
	var check_char;

    //The first character can be + -  blank or a digit.
	check_char = object_value.indexOf(decimal_format)

    //Was it a decimal?
	if (check_char < 1) {
		return IsNumeric(object_value);
	} else {
		return false;
	}
}


function IsNumeric(object_value)
{
	//Returns true if value is a number or is NULL
	//otherwise returns false	
	
	if (object_value.length == 0) {
		return true;
	}
	
	//	Returns true if value is a number defined as
	//	having an optional leading + or -.
	// 	having at most 1 decimal point.
	//	otherwise containing only the characters 0-9.
	var start_format = " .+-0123456789";
	var number_format = " .0123456789";
	var check_char;
	var decimal = false;
	var trailing_blank = false;
	var digits = false;
	
	//The first character can be + - .  blank or a digit.
	check_char = start_format.indexOf(object_value.charAt(0))
	//Was it a decimal?
	if (check_char == 1) {
		decimal = true;
	} else if (check_char < 1) {
		return false;
	}
	        
	//Remaining characters can be only . or a digit, but only one decimal.
	for (var i = 1; i < object_value.length; i++)
	{
		check_char = number_format.indexOf(object_value.charAt(i))
		if (check_char < 0) {
			return false;
		} else if (check_char == 1) {
			if (decimal) {		// Second decimal.
				return false;
			} else {
				decimal = true;
			}
		} else if (check_char == 0)	{
			if (decimal || digits) {
				trailing_blank = true;
			}
			// ignore leading blanks
		} else if (trailing_blank) {
			return false;
		} else {
			digits = true;
		}
	}	
	//All tests passed, so...
	return true
}

function IsNumberChar(ch)
{
	return (ch >= '0' && ch <= '9');
}

function IsAlphaChar(ch)
{
	return (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z') || ( ch.charCodeAt(0) >= 0x05d0 && ch.charCodeAt(0) <= 0x05ea);
}

function IsAlphaNumeric(object_value)
{
	var i;
	var intLength, ch;
	intLength = object_value.length;
	
	for(i = 0; i < intLength; i++) 
	{
		ch = object_value.charAt(i);
		if(!(IsAlphaChar(ch) || IsNumberChar(ch))) {
			return false;
		}
	}
	return true;
}

function IsAlpha(object_value)
{
	var i;
	var intLength, ch;
	intLength = object_value.length;
	
	for(i = 0; i < intLength; i++) 
	{
		ch = object_value.charAt(i);
		if(!IsAlphaChar(ch)) {
			return false;
		}
	}
	return true;
}


function IsEmail(object_value, min_value)
{
	var i, ch, intAtCount, intDotPos, intLastDotPos;
	
	var strEmailChars = "_-@.~!#$%&*+\"'"

	var len = object_value.length;

	if (len == 0) {
		return true;
	}
	
	if (len < min_value) {
		return false;
	}
	
	intAtCount = 0;
	intDotPos = 0;
	for(i = 0; i < len; i++) {
		ch = object_value.charAt(i);
		
		if(!(	IsAlphaChar(ch) || 
				IsNumberChar(ch) ||
				strEmailChars.indexOf(ch) != -1) 
			) {
				return false;
		} else {
			if(ch == '@') {
				intAtCount++;
				if(intAtCount > 1) {
					return false;
				}
			} else if (ch == '.') {
				// don't allow consecutive .'s
				if (i - 1 == intLastDotPos) {
					return false;
				}
				intDotPos = i;
				intLastDotPos = i;
			}
		}
	}
	
	return (intDotPos > 0 && intAtCount > 0 && intDotPos < (len - 1));

}


function LimitInput(field, countfield, maxlimit) 
{
	if (field.value.length > maxlimit) // if too long...trim it!
	{
		field.value = field.value.substring(0, maxlimit);
	}
	// otherwise, update 'characters left' counter
	else
	{
		if (countfield != null) 
			countfield.value = maxlimit - field.value.length;
	}
}


function ModalBox(blnInterNational, strText)
{
	if (blnInterNational && window.showModalDialog)
	{
		window.showModalDialog("/lib/ModalBox.asp?strText=" + escape(strText),null,"edge:raised;status:no;unadorned:yes;font-size:14px;dialogWidth:20em;dialogHeight:10em");
	}
	else
	{
		alert(strText);
	}
}

function ChildrenCheck(children, custody)
{	
	var haskids;
	haskids = 0;
	
	for(i=0; i < children.length; i++) {
		if(children.options[i].selected) {
			if(children.options[i].value == "1" || children.options[i].value == "2" || children.options[i].value == "3") {
				haskids = 1;
			}
		}
	}

	for(j=0; j < custody.length; j++) {
		if(custody.options[j].selected) {
			if(custody.options[j].value == "2" && haskids == 1) {
				return true;
			}
			if((custody.options[j].value == "4" || custody.options[j].value == "8" || custody.options[j].value == "16" || custody.options[j].value == "32" || custody.options[j].value == "64" || custody.options[j].value == "128") && haskids == 0) {
				return true;
			}
		}
	}
	
	return false;
	
}

/**********************************************************************************/
/* Form Validation: End															  */
/**********************************************************************************/

/**********************************************************************************/
/*	START - FORM OPTIONS (check or uncheck)										  */
/**********************************************************************************/
function UnCheckAllExceptThis(form_object, lngItem) {
	if (lngItem == null) {lngItem = 0};
	if (form_object[lngItem].checked == true) {
		var len = form_object.length;
		for (var i = 0; i < len; i++) {
			if (i != lngItem) {
				form_object[i].checked = false;
			}
		}
	}
}

/**********************************************************************************/
function UnCheckThis(form_object, lngItem) 
{
	form_object[lngItem].checked = false;
	var len = form_object.length;
	var uncheckedAll = true;
	for (var i = 0; i < len; i++){
		if (form_object[i].checked == true){
			uncheckedAll = false;
		}
	}
	if (uncheckedAll == true){
		form_object[0].checked = true;
	}
}

/**********************************************************************************/
/*	END - FORM OPTIONS (check or uncheck)										  */
/**********************************************************************************/