// trim all leading and trailing spaces from a string
function allTrim(theString) {
    return theString.replace(/^\s*|\s*$/g,"");
}

// trim all leading spaces from a string
function leftTrim(theString) {
	while (theString.charAt(0) == " ") {
		theString = theString.substr(1);
	}
	return theString;
}

// trim all trailing spaces from a string
function rightTrim(theString) {
	while (theString.charAt(theString.length - 1) == " ") {
		theString = theString.slice(0,theString.length - 1);
	}
	return theString;
}

// check if a string variable is empty, i.e. a blank string
function isEmpty(theString) {
	theString = allTrim(theString);
	if (theString == "") {
		return true;
	}
	return false;
}

// confirm if character is alphabetic
function isAlpha(c) {
	if ( c=="a"||c=="b"||c=="c"||c=="d"||c=="e"||c=="f"||c=="g"||c=="h"||
			c=="i"||c=="j"||c=="k"||c=="l"||c=="m"||c=="n"||c=="o"||c=="p"||
			c=="q"||c=="r"||c=="s"||c=="t"||c=="u"||c=="v"||c=="w"||c=="x"||
			c=="y"||c=="z"||c=="A"||c=="B"||c=="C"||c=="D"||c=="E"||c=="F"||
			c=="G"||c=="H"||c=="I"||c=="J"||c=="K"||c=="L"||c=="M"||c=="N"||
			c=="O"||c=="P"||c=="Q"||c=="R"||c=="S"||c=="T"||c=="U"||c=="V"||
			c=="W"||c=="X"||c=="Y"||c=="Z" ) {
		return true;
	}
 	return false;
}	

// validate email address string
function validEmailAddress(email) {
	email = allTrim(email);
	email_at = email.indexOf("@",1);
	email_dot = email.indexOf(".",email_at+2);
	if (email_at==-1 || email_dot==-1 || email.lastIndexOf(".")+1==email.length) {
		return false;
	}
	return true;
}

// validate Canadian postal code
function validCAPostalCode(postalCode) {
	postalCode = allTrim(postalCode);
	for (i=0; i<postalCode.length; i++) {
		if (postalCode.substring(i,i+1)==" " || postalCode.substring(i,i+1)=="-" || postalCode.substring(i,i+1)==".") {
			postalCode = postalCode.substring(0,i)+postalCode.substring(i+1,postalCode.length);
		}
	}
 	a2_pc_ok = (postalCode.length==6 && isAlpha(postalCode.substring(0,1)) &&
		!isNaN(postalCode.substring(1,2)) && isAlpha(postalCode.substring(2,3)) &&
		!isNaN(postalCode.substring(3,4)) && isAlpha(postalCode.substring(4,5)) &&
		!isNaN(postalCode.substring(5,6)));
    if (!a2_pc_ok) {
		return false;
	}
	return true;
}


function FormatNumber(Number,Decimals,Separator)
{
 Number += ""          // Force argument to string.
 Decimals += ""        // Force argument to string.
 Separator += ""       // Force argument to string.
 if((Separator == "") || (Separator.length > 1))
  Separator = "."
 if(Number.length == 0)
  Number = "0"
 var OriginalNumber = Number  // Save for number too large.
 var Sign = 1
 var Pad = ""
 var Count = 0
 // If no number passed, force number to 0.
 if(parseFloat(Number)){
  Number = parseFloat(Number)} else {
  Number = 0}
 // If no decimals passed, default decimals to 2.
 if((parseInt(Decimals,10)) || (parseInt(Decimals,10) == 0)){
  Decimals = parseInt(Decimals,10)} else {
  Decimals = 2}
 if(Number < 0)
 {
  Sign = -1         // Remember sign of Number.
  Number *= Sign    // Force absolute value of Number.
 }
 if(Decimals < 0)
  Decimals *= -1    // Force absolute value of Decimals.
 // Next, convert number to rounded integer and force to string value.
 // (Number contains 1 extra digit used to force rounding)
 Number = "" + Math.floor(Number * Math.pow(10,Decimals + 1) + 5)
 if((Number.substring(1,2) == '.')||((Number + '')=='NaN'))
  return(OriginalNumber) // Number too large to format as specified.
 // If length of Number is less than number of decimals requested +1,
 // pad with zeros to requested length.
 if(Number.length < Decimals +1) // Construct pad string.
 {
  for(Count = Number.length; Count <= Decimals; Count++)
   Pad += "0"
 }
 Number = Pad + Number // Pad number as needed.
 if(Decimals == 0){
  // Drop extra digit -- Decimal portion is formatted.
  Number = Number.substring(0, Number.length -1)} else {
  // Or, format number with decimal point and drop extra decimal digit.
 Number = Number.substring(0,Number.length - Decimals -1) +
          Separator +
          Number.substring(Number.length - Decimals -1,
          Number.length -1)}
 if((Number == "") || (parseFloat(Number) < 1))
  Number="0"+Number // Force leading 0 for |Number| less than 1.
 if(Sign == -1)
  Number = "-" + Number  // Set sign of number.
 return(Number)
}

function DHTMLPrintFriendly() {
	var pnlLeftMenu = document.getElementById('mainLeftMenu');	
	var pnlFooter = document.getElementById('mainFooter');	
	var pnlHeader = document.getElementById('mainHeader');	
	var pnlFirefox = document.getElementById('navtd');	

    // left menu hack (this didn't work in firefox without it ???)
    if (pnlFirefox) {
        pnlFirefox.style.width = 0;
    }

	// left menu
	if (pnlLeftMenu) {
		if(pnlLeftMenu.style.display != 'block') {
			pnlLeftMenu.style.display = 'block';
		}
		else {
			pnlLeftMenu.style.display = 'none';
		}
	}

	// footer
	if (pnlFooter) {
		if(pnlFooter.style.display != 'block') {
			pnlFooter.style.display = 'block';
		}
		else {
			pnlFooter.style.display = 'none';
		}
	}

	// header
	if (pnlHeader) {
		if(pnlHeader.style.display != 'block') {
			pnlHeader.style.display = 'block';
		}
		else {
			pnlHeader.style.display = 'none';
		}
	}
}

//open whats this help popup
function wtHelpPopup(strHelpURL) {
	var strOptions;
	var strPage;
	var helpPopup;
	
	strPage = strHelpURL;
	strOptions = 'width=430,height=240,scrollbars=no,status=yes,toolbar=no,location=no,menu=no,menubar=no,resizable=yes';
	helpPopup = window.open(strPage, 'wtHelpWin', strOptions);
	helpPopup.focus();
}

function Left(str, n){
	if (n <= 0)
	    return "";
	else if (n > String(str).length)
	    return str;
	else
	    return String(str).substring(0,n);
}
function Right(str, n){
    if (n <= 0)
       return "";
    else if (n > String(str).length)
       return str;
    else {
       var iLen = String(str).length;
       return String(str).substring(iLen, iLen - n);
    }
}


/*
    Written by Jonathan Snook, http://www.snook.ca/jonathan
    Add-ons by Robert Nyman, http://www.robertnyman.com

    To get all a elements in the document with a “info-links” class. 
    getElementsByClassName(document, "a", "info-links"); 
    To get all div elements within the element named “container”, with a “col” class. 
    getElementsByClassName(document.getElementById("container"), "div", "col"); 
    To get all elements within in the document with a “click-me” class. 
    getElementsByClassName(document, "*", "click-me");     
*/
function getElementsByClassName(oElm, strTagName, strClassName){
    var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
    var arrReturnElements = new Array();
    strClassName = strClassName.replace(/\-/g, "\\-");
    var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
    var oElement;
    for(var i=0; i<arrElements.length; i++){
        oElement = arrElements[i];      
        if(oRegExp.test(oElement.className)){
            arrReturnElements.push(oElement);
        }   
    }
    return (arrReturnElements)
}

// add event handlers for row highlighting
function ResultsClass_Init() {
    var arrElements = getElementsByClassName(document, "*", "results");
    
    for (var i=0; i<arrElements.length; i++) {
        arrElements[i].onmouseover = ResultsClass_MouseOver;
        arrElements[i].onmouseout = ResultsClass_MouseOut;
    }
}

// highlight any results rows on mouseover
function ResultsClass_MouseOver() {
    this.className = 'resultshighlight';
}

// reset any results rows on mouseout
function ResultsClass_MouseOut() {
    this.className = 'results';
}

// get node text
function getTextContent (node) {
	if (typeof node.textContent != 'undefined') {
		// firefox
		return node.textContent;
	}
	else if (node.nodeType == 3) {
		// ie
		return node.nodeValue;
	}
	else {
		// netscape
		var textContent = '';
		for (var i = 0; i < node.childNodes.length; i++) {
			textContent += getTextContent(node.childNodes[i]);
		}
		return textContent;
	}
}