/******************************************************************************
* dhtmllib.js                                                                 *
*                                                                             *
* Copyright 1999 by Mike Hall.
* Visit http://www.dynamicdrive.com                                               *                                       *
* Last update: November 30, 1999.                                             *
*                                                                             *
* Provides basic functions for DHTML positioned elements which will work on   *
* both Netscape Communicator and Internet Explorer browsers (version 4.0 and  *
* up).                                                                        *
******************************************************************************/

// Determine browser.

var isMinNS4 = (navigator.appName.indexOf("Netscape") >= 0 &&
                parseFloat(navigator.appVersion) >= 4) ? 1 : 0;
var isMinIE4 = (document.all) ? 1 : 0;
var isMinIE5 = (isMinIE4 && navigator.appVersion.indexOf("5.")) >= 0 ? 1 : 0;

//-----------------------------------------------------------------------------
// Misc Utilities...forte interactive, inc. http://www.forteinteractive.com
//-----------------------------------------------------------------------------

function goto(urlstr) {
		document.location = urlstr;
	}
function popup(url,ht) {
		if (ht==undefined) ht = 400;
		window.open(url,'_blank','width=600,height=' + ht + ',left=10,top=10,directories=no,status=no,location=no,scrollbars=yes,toolbar=no,menubar=no,copyhistory=no,resizable=yes');
	}
	
function Start(page) {
open(page, "_blank", "toolbar=1,menubar=0,location=no,scrollbars=yes,resizable=yes,width=700,height=400");
}
function getHelp(topic) {
page = webroot + "/help.cfm?topic=" + topic;
open(page, "Window", "toolbar=no, menubar=no, location=no, scrollbars=vertical, resizable=no, width=200, height=300");
}

function Goto(urlstr) {
	document.location = urlstr;
}
function isNumeric(objValue, msg) {
	if (objValue.value.length == 0) return true;
	if (isNaN(objValue.value)) {
		if (msg.length > 0) alert(msg);
		objValue.focus();
		return false;
	} 
	return true;
	}
function inRange(objValue, minimum, maximum, msg) {
	if (objValue.value.length == 0) return true;
	if (objValue.value < minimum || objValue.value > maximum) {
		if (msg.length > 0) alert(msg);
		objValue.focus();
		return false;
	} 
	return true;
	}
function isEmail(objValue,msg) {
	if (objValue.value.length == 0) return true;
	var reg2 = /^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/;
	if (reg2.test(objValue.value)) {
  	return true;
		}
	else {
		if (msg.length > 0) alert(msg);
		objValue.focus();
		return false;
		}
	}
function hideObject(layerid) {
	divoff=document.all(layerid);
	divoff.style.display="none";
	}		
function showObject(layerid) {
	divon=document.all(layerid);
	divon.style.display="";
	}		
function checkPhone(object_value)
    {
    if (object_value.length == 0)
        return true;
		
    if (object_value.length != 12)
        return false;
	// check if first 3 characters represent a valid area code
    if (!checkNumber(object_value.substring(0,3)))
		return false;
    else
	if (!numberRange((eval(object_value.substring(0,3))), 100, 1000))
		return false;

	// check if area code/exchange separator is either a'-' or ' '
	if (object_value.charAt(3) != "-" && object_value.charAt(3) != " ")
        return false

	// check if  characters 5 - 7 represent a valid exchange
    if (!checkNumber(object_value.substring(4,7)))
		return false;
    else
	if (!numberRange((eval(object_value.substring(4,7))), 100, 1000))
		return false;

	// check if exchange/number separator is either a'-' or ' '
	if (object_value.charAt(7) != "-" && object_value.charAt(7) != " ")
        return false;

	// make sure last for digits are a valid integer
	if (object_value.charAt(8) == "-" || object_value.charAt(8) == "+")
        return false;
	else
	{
		return (checkInteger(object_value.substring(8,12)));
	}
 }
function checkNumber(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 checkRange(object_value, min_value, max_value)
    {
    //if value is in range then return true else return false

    if (object_value.length == 0)
        return true;


    if (!checkNumber(object_value))
	{
	return false;
	}
    else
	{
	return (numberRange((eval(object_value)), min_value, max_value));
	}
	
    //All tests passed, so...
    return true;
    }
function numberRange(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 checkInteger(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 an integer defined as
    //   having an optional leading + or -.
    //   otherwise containing only the characters 0-9.
	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 checkNumber(object_value);
    else
	return false;
    }
		
//-----------------------------------------------------------------------------
// Layer visibility.
//-----------------------------------------------------------------------------
/*
function showObject(objId) { 
     if (navigator.appName=="Netscape") 
      document.layers[objId].visibility = "show"; 
     else 
      document.all(objId).style.visibility = "visible"; 
   } 
function hideObject(objId) { 
     if (navigator.appName=="Netscape") 
      document.layers[objId].visibility = "hide"; 
     else 
      document.all(objId).style.visibility = "hidden"; 
    } 
*/
function hideLayer(layer) {

  if (isMinNS4)
    layer.visibility = "hide";
  if (isMinIE4)
    layer.style.visibility = "hidden";
}

function showLayer(layer) {

  if (isMinNS4)
    layer.visibility = "show";
  if (isMinIE4)
    layer.style.visibility = "visible";
}

function isVisible(layer) {

  if (isMinNS4 && layer.visibility == "show")
    return(true);
  if (isMinIE4 && layer.style.visibility == "visible")
    return(true);

  return(false);
}

//-----------------------------------------------------------------------------
// Layer positioning.
//-----------------------------------------------------------------------------

function moveLayerTo(layer, x, y) {

  if (isMinNS4)
    layer.moveTo(x, y);
  if (isMinIE4) {
    layer.style.left = x;
    layer.style.top  = y;
  }
}

function moveLayerBy(layer, dx, dy) {

  if (isMinNS4)
    layer.moveBy(dx, dy);
  if (isMinIE4) {
    layer.style.pixelLeft += dx;
    layer.style.pixelTop  += dy;
  }
}

function getLeft(layer) {

  if (isMinNS4)
    return(layer.left);
  if (isMinIE4)
    return(layer.style.pixelLeft);
  return(-1);
}

function getTop(layer) {

  if (isMinNS4)
    return(layer.top);
  if (isMinIE4)
    return(layer.style.pixelTop);
  return(-1);
}

function getRight(layer) {

  if (isMinNS4)
    return(layer.left + getWidth(layer));
  if (isMinIE4)
    return(layer.style.pixelLeft + getWidth(layer));
  return(-1);
}

function getBottom(layer) {

  if (isMinNS4)
    return(layer.top + getHeight(layer));
  else if (isMinIE4)
    return(layer.style.pixelTop + getHeight(layer));
  return(-1);
}

function getPageLeft(layer) {

  if (isMinNS4)
    return(layer.pageX);
  if (isMinIE4)
    return(layer.offsetLeft);
  return(-1);
}

function getPageTop(layer) {

  if (isMinNS4)
    return(layer.pageY);
  if (isMinIE4)
    return(layer.offsetTop);
  return(-1);
}

function getWidth(layer) {

  if (isMinNS4) {
    if (layer.document.width)
      return(layer.document.width);
    else
      return(layer.clip.right - layer.clip.left);
  }
  if (isMinIE4) {
    if (layer.style.pixelWidth)
      return(layer.style.pixelWidth);
    else
      return(layer.clientWidth);
  }
  return(-1);
}

function getHeight(layer) {

  if (isMinNS4) {
    if (layer.document.height)
      return(layer.document.height);
    else
      return(layer.clip.bottom - layer.clip.top);
  }
  if (isMinIE4) {
    if (false && layer.style.pixelHeight)
      return(layer.style.pixelHeight);
    else
      return(layer.clientHeight);
  }
  return(-1);
}

function getzIndex(layer) {

  if (isMinNS4)
    return(layer.zIndex);
  if (isMinIE4)
    return(layer.style.zIndex);

  return(-1);
}

function setzIndex(layer, z) {

  if (isMinNS4)
    layer.zIndex = z;
  if (isMinIE4)
    layer.style.zIndex = z;
}

//-----------------------------------------------------------------------------
// Layer clipping.
//-----------------------------------------------------------------------------

function clipLayer(layer, clipleft, cliptop, clipright, clipbottom) {

  if (isMinNS4) {
    layer.clip.left   = clipleft;
    layer.clip.top    = cliptop;
    layer.clip.right  = clipright;
    layer.clip.bottom = clipbottom;
  }
  if (isMinIE4)
    layer.style.clip = 'rect(' + cliptop + ' ' +  clipright + ' ' + clipbottom + ' ' + clipleft +')';
}

function getClipLeft(layer) {

  if (isMinNS4)
    return(layer.clip.left);
  if (isMinIE4) {
    var str =  layer.style.clip;
    if (!str)
      return(0);
    var clip = getIEClipValues(layer.style.clip);
    return(clip[3]);
  }
  return(-1);
}

function getClipTop(layer) {

  if (isMinNS4)
    return(layer.clip.top);
  if (isMinIE4) {
    var str =  layer.style.clip;
    if (!str)
      return(0);
    var clip = getIEClipValues(layer.style.clip);
    return(clip[0]);
  }
  return(-1);
}

function getClipRight(layer) {

  if (isMinNS4)
    return(layer.clip.right);
  if (isMinIE4) {
    var str =  layer.style.clip;
    if (!str)
      return(layer.style.pixelWidth);
    var clip = getIEClipValues(layer.style.clip);
    return(clip[1]);
  }
  return(-1);
}

function getClipBottom(layer) {

  if (isMinNS4)
    return(layer.clip.bottom);
  if (isMinIE4) {
    var str =  layer.style.clip;
    if (!str)
      return(layer.style.pixelHeight);
    var clip = getIEClipValues(layer.style.clip);
    return(clip[2]);
  }
  return(-1);
}

function getClipWidth(layer) {

  if (isMinNS4)
    return(layer.clip.width);
  if (isMinIE4) {
    var str = layer.style.clip;
    if (!str)
      return(layer.style.pixelWidth);
    var clip = getIEClipValues(layer.style.clip);
    return(clip[1] - clip[3]);
  }
  return(-1);
}

function getClipHeight(layer) {

  if (isMinNS4)
    return(layer.clip.height);
  if (isMinIE4) {
    var str =  layer.style.clip;
    if (!str)
      return(layer.style.pixelHeight);
    var clip = getIEClipValues(layer.style.clip);
    return(clip[2] - clip[0]);
  }
  return(-1);
}

function getIEClipValues(str) {

  var clip = new Array();
  var i;

  // Parse out the clipping values for IE layers.

  i = str.indexOf("(");
  clip[0] = parseInt(str.substring(i + 1, str.length), 10);
  i = str.indexOf(" ", i + 1);
  clip[1] = parseInt(str.substring(i + 1, str.length), 10);
  i = str.indexOf(" ", i + 1);
  clip[2] = parseInt(str.substring(i + 1, str.length), 10);
  i = str.indexOf(" ", i + 1);
  clip[3] = parseInt(str.substring(i + 1, str.length), 10);
  return(clip);
}

//-----------------------------------------------------------------------------
// Layer scrolling.
//-----------------------------------------------------------------------------

function scrollLayerTo(layer, x, y, bound) {

  var dx = getClipLeft(layer) - x;
  var dy = getClipTop(layer) - y;

  scrollLayerBy(layer, -dx, -dy, bound);
}

function scrollLayerBy(layer, dx, dy, bound) {

  var cl = getClipLeft(layer);
  var ct = getClipTop(layer);
  var cr = getClipRight(layer);
  var cb = getClipBottom(layer);

  if (bound) {
    if (cl + dx < 0)

      dx = -cl;

    else if (cr + dx > getWidth(layer))
      dx = getWidth(layer) - cr;
    if (ct + dy < 0)

      dy = -ct;

    else if (cb + dy > getHeight(layer))
      dy = getHeight(layer) - cb;
  }

  clipLayer(layer, cl + dx, ct + dy, cr + dx, cb + dy);
  moveLayerBy(layer, -dx, -dy);
}

//-----------------------------------------------------------------------------
// Layer background.
//-----------------------------------------------------------------------------

function setBgColor(layer, color) {

  if (isMinNS4)
    layer.bgColor = color;
  if (isMinIE4)
    layer.style.backgroundColor = color;
}

function setBgImage(layer, src) {

  if (isMinNS4)
    layer.background.src = src;
  if (isMinIE4)
    layer.style.backgroundImage = "url(" + src + ")";
}

//-----------------------------------------------------------------------------
// Layer utilities.
//-----------------------------------------------------------------------------

function getLayer(name) {

  if (isMinNS4)
    return findLayer(name, document);
  if (isMinIE4)
    return eval('document.all.' + name);

  return null;
}

function findLayer(name, doc) {

  var i, layer;

  for (i = 0; i < doc.layers.length; i++) {
    layer = doc.layers[i];
    if (layer.name == name)
      return layer;
    if (layer.document.layers.length > 0) {
      layer = findLayer(name, layer.document);
      if (layer != null)
        return layer;
    }
  }

  return null;
}

//-----------------------------------------------------------------------------
// Window and page properties.
//-----------------------------------------------------------------------------

function getWindowWidth() {

  if (isMinNS4)
    return(window.innerWidth);
  if (isMinIE4)
    return(document.body.clientWidth);
  return(-1);
}

function getWindowHeight() {

  if (isMinNS4)
    return(window.innerHeight);
  if (isMinIE4)
    return(document.body.clientHeight);
  return(-1);
}

function getPageWidth() {

  if (isMinNS4)
    return(document.width);
  if (isMinIE4)
    return(document.body.scrollWidth);
  return(-1);
}

function getPageHeight() {

  if (isMinNS4)
    return(document.height);
  if (isMinIE4)
    return(document.body.scrollHeight);
  return(-1);
}

function getPageScrollX() {

  if (isMinNS4)
    return(window.pageXOffset);
  if (isMinIE4)
    return(document.body.scrollLeft);
  return(-1);
}

function getPageScrollY() {

  if (isMinNS4)
    return(window.pageYOffset);
  if (isMinIE4)
    return(document.body.scrollTop);
  return(-1);
}

/* date functions */
function MYcheckdate(object_value)
    {
    //Returns true if value is a date format or is NULL
    //otherwise returns false	

    if (object_value.length == 0)
        return true;

    //Returns true if value is a date in the mm/dd/yyyy format
	isplit = object_value.indexOf('/');

	if (isplit == -1 || isplit == object_value.length)
		return false;

    sMonth = object_value.substring(0, isplit);

	if (sMonth.length == 0)
        return false;

	isplit = object_value.indexOf('/', isplit + 1);

	if (isplit == -1 || (isplit + 1 ) == object_value.length)
		return false;

    sDay = object_value.substring((sMonth.length + 1), isplit);

	if (sDay.length == 0)
        return false;

	sYear = object_value.substring(isplit + 1);
	
	if (sYear.length<4) return false; //four digit year required
	
	if (!MYcheckinteger(sMonth)) //check month
		return false;
	else
	if (!MYcheckrange(sMonth, 1, 12)) //check month
		return false;
	else
	if (!MYcheckinteger(sYear)) //check year
		return false;
	else
	if (!MYcheckrange(sYear, 0, 9999)) //check year
		return false;
	else
	if (!MYcheckinteger(sDay)) //check day
		return false;
	else
	if (!MYcheckday(sYear, sMonth, sDay)) // check day
		return false;
	else
		return true;
    }



function MYcheckday(checkYear, checkMonth, checkDay)
    {

	maxDay = 31;

	if (checkMonth == 4 || checkMonth == 6 ||
			checkMonth == 9 || checkMonth == 11)
		maxDay = 30;
	else
	if (checkMonth == 2)
	{
		if (checkYear % 4 > 0)
			maxDay =28;
		else
		if (checkYear % 100 == 0 && checkYear % 400 > 0)
			maxDay = 28;
		else
			maxDay = 29;
	}

	return MYcheckrange(checkDay, 1, maxDay); //check day
    }



function MYcheckinteger(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 an integer defined as
    //   having an optional leading + or -.
    //   otherwise containing only the characters 0-9.
	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 MYchecknumber(object_value);
    else
	return false;
    }



function MYnumberrange(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 MYchecknumber(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 MYcheckrange(object_value, min_value, max_value)
    {
    //if value is in range then return true else return false

    if (object_value.length == 0)
        return true;


    if (!MYchecknumber(object_value))
	{
	return false;
	}
    else
	{
	return (MYnumberrange((eval(object_value)), min_value, max_value));
	}
	
    //All tests passed, so...
    return true;
    }