var SCAN_TIMEOUT = 4;
var scanTimeout = SCAN_TIMEOUT;
var PAGE_TIMEOUT = 230; //230
var pageTimer = 0;
var strInput = "";
var discardedStrInput = "";
var BadgeStartCharCode = 37;
var BadgeEndCharCode = 13;
var BadgeSepCharCode = 94;

var BadgeStartChar = String.fromCharCode(BadgeStartCharCode);
var BadgeSepChar = String.fromCharCode(BadgeSepCharCode);

var RedirPage = "Contact-Information.aspx";
var MinFieldsToCapture = 5;
var AllowMultipleEndChars = false;
var AlwaysCapture = false;
var WaitForHowManyEndChars = 1;

var PreReplaceStrings = new Array();

var ScanDivElementId = "";
var BodyDivElementId = "";
var CaptureInProgress = false;
var EndCharCount = 0;
function setVisibleElement(ElementId,DisplayType) {
    if (ElementId && document.getElementById(ElementId)) {
        document.getElementById(ElementId).style.display = DisplayType;
    }
}
function setInnerHTML (ElementId,text,additive) {
    if (ElementId && document.getElementById(ElementId)) {
        if (additive)
            document.getElementById(ElementId).innerHTML += text;
        else
            document.getElementById(ElementId).innerHTML = text;
    }
}
function checkScanTimeout () {
	scanTimeout -= 1;
	if (scanTimeout == 0) {
		discardedStrInput = strInput;
		if (document.activeElement && document.activeElement.type) {
		    var el = document.activeElement;
		    if (el.type == "text" || el.type == "password")
		        el.value += discardedStrInput;
		    if (el.type == "textarea")
		        el.innerHTML += discardedStrInput;
		}
		strInput = "";
		setVisibleElement(BodyDivElementId,"block");
		setVisibleElement(ScanDivElementId,"none");
		CaptureInProgress = false;
		EndCharCount = 0;
		scanTimeout = SCAN_TIMEOUT;
	} else {
		setTimeout ("checkScanTimeout()",500);
	}
}
function filterKeys(event) {
    event = (event) ? event : ((window.event) ? event : null);
    var keyCode = (event.charCode) ? event.charCode : ((event.which) ? event.which : event.keyCode);
    var keyChar = String.fromCharCode(keyCode);
    if (CaptureInProgress) {
        if (keyCode == 9) {
    		strInput += keyChar;
            return false;
        }
    } 
    return true;
}
function captureKeys(event) {
  pageTimer = 0;
  event = (event) ? event : ((window.event) ? event : null);
  var SendKeyToPage = true;
  var keyCode = (event.charCode) ? event.charCode : ((event.which) ? event.which : event.keyCode);
	var keyChar = String.fromCharCode(keyCode);
	//alert (keyChar);
	scanTimeout = SCAN_TIMEOUT;
	if (keyChar == BadgeStartChar && !CaptureInProgress) {
		setVisibleElement(BodyDivElementId,"none");
		setInnerHTML(ScanDivElementId,"Processing Badge Data ",false);
		setVisibleElement(ScanDivElementId,"block");
		strInput = keyChar;
		CaptureInProgress = true;
		EndCharCount = 0;
		SendKeyToPage = false;
		setTimeout ("checkScanTimeout()",500);
	} else if(CaptureInProgress || AlwaysCapture) {
		strInput += keyChar;
		SendKeyToPage = false;
		if ((strInput.length % 5) == 0) {
		    setInnerHTML(ScanDivElementId,". ",true);
		}
	}
	if (keyCode == BadgeEndCharCode && (CaptureInProgress || AlwaysCapture)) {
		EndCharCount++;
		// check for valid input
		var strInputReplaced = strInput;
		// replace the pre-replace strings
		for (var i = 0; i < PreReplaceStrings.length; i++) 
		    while (strInputReplaced.indexOf(PreReplaceStrings[i][0]) > -1)
    		    strInputReplaced = strInputReplaced.replace(PreReplaceStrings[i][0],PreReplaceStrings[i][1]);
		var a = (strInputReplaced+BadgeSepChar).split(BadgeSepChar);
		//alert (a.length);
		if (a.length > MinFieldsToCapture && EndCharCount >= WaitForHowManyEndChars) {
		    window.location.href = RedirPage + "?cardscan=wedge&carddata=" + escape(strInputReplaced);
//			document.all.cardform.carddata.value = strInput;
//			document.all.cardform.submit();
		} else {
			if (!AllowMultipleEndChars) {
			    strInput = "";
		        setVisibleElement(BodyDivElementId,"block");
		        setVisibleElement(ScanDivElementId,"none");
		    }
		}
		//alert (strInput);
	}
    return SendKeyToPage;
}