/*******************************************************************/
	/**
	 * This variable provides a global definition of the current browser's object capabilites.
	 * 
	 * @author Peter-Paul Koch
	 * @url http://www.quirksmode.org/
	 * 
	 * @version 1, 2004-09-01
	 */
var DHTML = (document.getElementById || document.all || document.layers);
/*******************************************************************/
function getObj(name)
{
	/**
	 * This function provides cross-browser access to a Document Object.
	 * 
	 * @author Peter-Paul Koch
	 * @url http://www.quirksmode.org/
	 * 
	 * @version 1, 2004-09-01
	 */
	 
	 if (document.getElementById)
	 {
	 	this.obj = document.getElementById(name);
		this.style = document.getElementById(name).style;
	}
	else if (document.all)
	{
		this.obj = document.all[name];
		this.style = document.all[name].style;
	}
	else if (document.layers)
	{
		this.obj = document.layers[name];
		this.style = document.layers[name];
	}
}
/*******************************************************************/
function show(flag, myID)
{
	/**
	 * This function shows or hides a <div> based on the div's ID 
	 * 
	 * @return true or false
	 * @author Peter-Paul Koch
	 * @url http://www.quirksmode.org/
	 * 
	 * @version 1, 2004-09-01
	 */
	 if (!DHTML) return;
	 var x = new getObj(myID);
	 x.style.display = (flag) ? 'block' : 'none'
}
/*******************************************************************/
// Added by BK on 10/19/2004
function spaceTrim(InString) {
 var LoopCtrl=true;
 while (LoopCtrl) {
  if (InString.indexOf("  ") != -1) {
   Temp = InString.substring(0, InString.indexOf("  "))
   InString = Temp + InString.substring(InString.indexOf("  ")+1, InString.length)
  } else
   LoopCtrl = false;
 }
 if (InString.substring(0, 1) == " ")
  InString = InString.substring(1, InString.length)
 if (InString.substring (InString.length-1) == " ")
  InString = InString.substring(0, InString.length-1)
 return (InString)
}
// Date validation function(s) added by BK - 09/15/04
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
}
// End of Date validation function(s) added by BK - 09/15/04

function isDate2(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){
		return false;
	} else if (strMonth.length<1 || month<1 || month>12){
		return false;
	} else if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		return false;
	} else if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		return false;
	} else if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		return false
	} else {
		return true;
	}
}

/*******************************************************************/
function checkEnter(e) 
{
	/**
	 * This function removes the ability to submit a form with the Enter key.
	 * 
	 * @return true or false
	 * @author Jennifer Madden
	 * @url http://www.jennifermadden.com/162/examples/stringEnterKeyDetector.html
	 * 
	 * @version 1, 2004-09-15
	 */
	
	var characterCode
	
	if (e && e.which)
	{
		e = e; 
		characterCode = e.which;
	} else {
		if (window.event)
		{
			e = event;
			characterCode = e.keyCode;
		}
	}
	
	if (characterCode == 13) 
	{
		return false;
	} else {
		return true;
	}
}
/*******************************************************************/
function validateDate(day, month, year)
{
	/**
	 * This function validates the passed values as a valid date.
	 * 
	 * @return true or false
	 * @author Adrian J. Moreno (amoreno@iKnowKungFoo.com)
	 * 
	 * @version 1, 2004-10-17
	 */
	
	if (parseInt(day) != 0 && parseInt(month) != 0 && parseInt(year) != 0)
	{
		switch(month) 
		{
			case "2": // February
			
			if (year == Math.round(year / 4) * 4) //leap year
			{
				if (day > 29) { return false; }
			}
			else
			{
				if (day > 28) { return false; }
			}
            break;
			
			case "4" : // April
			if (day > 30) { return false; }
            break;
			
			case "6" : // June
			if (day > 30) { return false; }
			break;
			
			case "9": // September
			if (day > 30) { return false; }	
			break;
			
			case "11": // November
			if (day > 30) { return false; }	
			break;
			
			default: //date is valid
			return true;
			break;
		}
	}
	else 
	{
		return false;
	}
}
/*******************************************************************/
function checkZipCode(zip)
{
	switch(zip.length)
	{
		case 0: // Check for zero length only if Zip Code is Required.
		
			return false;
			
		break;
		
		case 5: // If Zip Code length is 5, value can only be numeric.
		
			if (isNaN(zip))
			{
				return false;
			} else {
				return true;
			}
			
		break;
		
		case 6: // 6th charater could be a dash ("-").
		
			if (zip.charAt(5) != "-")
			{
				return false;
			} else {
				return true;
			}
			
		break;
		
		case 9: // Could be Zip without dash, so value can only be numeric.
		
			if (isNaN(zip))
			{
				return false;
			} else {
				return true;
			}
		
		break;
		
		case 10: // Full-fledged Zip Code, 5 digits, dash ("-"), 4 digits
		
			if (zip.charAt(5) != "-")
			{
				return false;
			} 
			else
			{
				var zPart = zip.split("-");
				
				if (isNaN(zPart[0]))
				{
					return false;
				}
				if (isNaN(zPart[1]))
				{
					return false;
				}
				
				return true;
			}
			
		break;

		default:
		
			return false;
			
		break;
	}
} 
/*******************************************************************/