//********************************
// DDtoDay
//********************************
function DDtoDay(inputDate)
{
  var dateString = new Array('','st','nd','rd','th','th','th','th','th','th','th','th','th','th','th','th','th','th','th','th','th','st','nd','rd','th','th','th','th','th','th','th','st');
  returnDate = '';
  tempDate = parseInt(inputDate);
  if (tempDate >= 1 && tempDate <= 31)
  {
	  returnDate = inputDate + dateString[tempDate];
	}
	return returnDate;
}
//*******************************
// IsValidEmail
//*******************************
function IsValidEmail(sEmail)
{
	return (sEmail.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1);
}

//*******************************
// IsValidCCNumber
//*******************************
function IsValidCCNumber(s) {
	// remove non-numerics
	var v = "0123456789";
	var w = "";
	for (i=0; i < s.length; i++) {
	x = s.charAt(i);
	if (v.indexOf(x,0) != -1)
	w += x;
	}
	// validate number
	j = w.length / 2;
	if (j < 6.5 || j > 8 || j == 7) return false;
	k = Math.floor(j);
	m = Math.ceil(j) - k;
	c = 0;
	for (i=0; i<k; i++) {
	a = w.charAt(i*2+m) * 2;
	c += a > 9 ? Math.floor(a/10 + a%10) : a;
	}
	for (i=0; i<k+m; i++) c += w.charAt(i*2+1-m) * 1;
	return (c%10 == 0);
}

//********************************
// DisplayDate
//********************************
function DisplayDate()
{
	var mydate		= new Date();
	var year		= mydate.getFullYear();
	var month		= mydate.getMonth();
	var day			= mydate.getDate();
	var dayofweek	= mydate.getDay();
	
	var MonthArray = new Array('January','February','March','April','May','June','July','August','September','October','November','December');
	var DayOfWeekArray = new Array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday');
	
	document.write(DayOfWeekArray[dayofweek] + ', ' + MonthArray[month] + ' ' + day.toString() + ', ' + year.toString());
}

//****************************************************
// randomNumber
//****************************************************
function randomNumber(limit){
  return (Math.floor(Math.random()*limit).toString());
}

//****************************************************
// IsMac
//****************************************************
function IsMac()
{
	if(navigator.appVersion.indexOf("Win") != -1)
	{
		return false;
	}
	else if(navigator.appVersion.indexOf("Mac") != -1)
	{
		return true;
	}
	else return false;
}

//**********************************************
// isNumberFloat
//**********************************************
function isNumberFloat(inputString)
{
  return (!isNaN(parseFloat(inputString))) ? true : false;
}
//**********************************************
// isNumberInt
//**********************************************
function isNumberInt(inputString)
{
  return (!isNaN(parseInt(inputString))) ? true : false;
}
var popUpLinkWin=0;
//****************************************************
// popUpLinkWindow
// optional arguments: width,height,left,top
//****************************************************
function popUpLinkWindow(url)
{
  	if(popUpLinkWin)
  	{
    	if(!popUpLinkWin.closed) popUpLinkWin.close();
  	}
	
	var nWidth=600;
	var nHeight=400;
	var nLeft=10;
	var nTop=10;
	
	if (popUpLinkWindow.arguments.length > 1)
	{
		nWidth = parseInt(popUpLinkWindow.arguments[1])
	}
	if (popUpLinkWindow.arguments.length > 2)
	{
		nHeight = parseInt(popUpLinkWindow.arguments[2])
	}
	if (popUpLinkWindow.arguments.length > 3)
	{
		nLeft = parseInt(popUpLinkWindow.arguments[3])
	}
	if (popUpLinkWindow.arguments.length > 4)
	{
		nTop = parseInt(popUpLinkWindow.arguments[4])
	}
	
	//alert('width=' + nWidth);
	//alert('height=' + nHeight);
	
	popUpLinkWin = open(url, 'link', 'height=' + nHeight + ',width=' + nWidth + ',left=' + nLeft + ',top=' + nTop + ',toolbar=yes,menubar=yes,scrollbars=yes,resizable=yes,location=yes,directories=yes,status=yes');
	popUpLinkWin.focus();
}

//****************************************************
// ConvertHTML
// Converts the opening and closing HTML tags to parens
//****************************************************
function ConvertHTML(sInput)
{
	var sOutput = sInput;
    sOutput=sOutput.replace(/</g,"(");
    sOutput=sOutput.replace(/>/g,")");
	return sOutput;
}

//****************************************************
// StripStringOfVulnerableChars 
// Removes vulnerable chars from a string
//****************************************************
function StripStringOfVulnerableChars(sString,bStripSpaces)
{
	
	var s = sString.replace(/'/g,"");  	// remove tics from string
	s = s.replace(/;/g,"");  			// remove semicolons from string
	s = s.replace(/\(/g,"");  			// remove lefts paren from string
	s = s.replace(/\)/g,"");  			// remove right parens from string
	s = s.replace(/\*/g,"");  			// remove asterisk from string
	s = s.replace(/"/g,"");  			// remove double quotes from string
	s = s.replace(/--/g,"");  			// remove double dash from string
	s = s.replace(/=/g,"");  			// remove equal signs from string

	//s = s.replace(/#/g,"");  			// remove pound signs from string
	if (bStripSpaces)
	{
		s = s.replace(/ /g,"");  		// remove spaces from string
	}
	return s;
}
//****************************************************
// CleanWordChars
//****************************************************
function CleanWordChars(inputString)
{
	//alert("entry to CleanWords");
	
	var returnString = inputString;
	
	var nLen = returnString.length;
	
	//alert("before: " + returnString);
	
	// clean special MSWord chars
	returnString = returnString.replace(/…/g,"...");  			// replace elipses with ascii ...
	returnString = returnString.replace(/’/g,"'");  			// replace apos with ascii apos
	returnString = returnString.replace(/”/g,"\"");  			// replace ending quotes with ascii ending quotes
	returnString = returnString.replace(/“/g,"\"");  			// replace beginning quotes with ascii ending quotes
	returnString = returnString.replace(/½/g,"1/2");  			// replace ½ with 1/2

	var c='';
	
	for (var x=0; x<nLen; x++)
	{
		c = returnString.charAt(x);
		
		// standard alpha chars
		if ((c >='a') && (c <='z')) continue;
		if ((c >='A') && (c <='Z')) continue;
		if ((c >='0') && (c <='9')) continue;
		
		// standard keyboard special chars
		switch(c)
		{
			// Allow the < and the > since the calling code takes care of editing it.
			case '>' : continue;	
			case '<' : continue;	
			
			case ' ' : continue;	
			case '.' : continue;	
			case ',' : continue;	
			case '?' : continue;	
			case '!' : continue;	
			case '"' : continue;	
			case '-' : continue;	
			case '@' : continue;	
			case '#' : continue;	
			case '$' : continue;	
			case '%' : continue;	
			case '^' : continue;	
			case '*' : continue;	
			case '&' : continue;	
			case '(' : continue;	
			case ')' : continue;	
			case '_' : continue;	
			case '+' : continue;	
			case '=' : continue;	
			case '[' : continue;	
			case ']' : continue;	
			case '{' : continue;	
			case '}' : continue;	
			case '&' : continue;	
			case '\'' : continue;	
			case ';' : continue;	
			case ':' : continue;	
			case '`' : continue;	
			case '~' : continue;	
			case '/' : continue;	
			case '|' : continue;	
			case '\\' : continue;	
			case '\t' : continue;	
			case '\r' : continue;	
			case '\n' : continue;	
			case '\r\n' : continue;	
		}
		
		//alert("Replacing char: [" + c + "] with space");
		
		// drop this unknown char
		//returnString[x]=' '; 
		returnString = returnString.replace(c," ");  
	}
	
	return returnString;
}

//****************************************************
// JSTrim
// Removes LEADING and TRAILING spaces ONLY from a string
// optional 3rd and 4th parms: BOOL BOOL
// 3rd parm: BOOL  - strip vulnerable chars
// 4th parm: BOOL  - strip spaces as part of strip (default = false)
// 5th parm: BOOL  - convert HTML tags to parens (default = true)
//****************************************************
function JSTrim (inputString, removeChar) 
{
	// Clean MSWord chars et al.
	var returnString = CleanWordChars(inputString);
	
	if (removeChar.length)
	{
	  while(''+returnString.charAt(0)==removeChar)
		{
		  returnString=returnString.substring(1,returnString.length);
		}
		while(''+returnString.charAt(returnString.length-1)==removeChar)
	  {
	    returnString=returnString.substring(0,returnString.length-1);
	  }
	}
	
	
	// check to see if additional parms were passed to tell us to 
	// strip out dangerous security risk chars
	var bCheckForVulnerabilities = (JSTrim.arguments.length > 2) ? JSTrim.arguments[2] : false;
	
	var bStripSpacesFromString = (JSTrim.arguments.length > 3) ? JSTrim.arguments[3] : false;
	
	// convert html? if no parm specified, will default to true
	var bConvertHTML = true;
	if (JSTrim.arguments.length > 4) 
	{
		if (JSTrim.arguments[4] == false)
		{
			bConvertHTML=false;	
		}
	}
	
	// convert any html chars
	var s = bConvertHTML ? ConvertHTML(returnString) : returnString;
	
	// if requested, strip also for vulnerabilities
	if (bCheckForVulnerabilities) 
	{
		s = StripStringOfVulnerableChars(s,bStripSpacesFromString);
	}
	else
	{
		// just clean of all spaces?
		if (bStripSpacesFromString)
		{
			s = s.replace(/ /g,"");  		// remove spaces from string
		}
	}
	
	return s;
}
//****************************************************
// JSTrimSpace
// Removes leading and trailing spaces from a string
//****************************************************
function JSTrimSpace(inputString)
{
	return JSTrim(inputString,' ');
}