//handle browser resizing problem for navigator 4
if(!window.orig_width) {
  window.onresize = reset_layers;
  window.orig_width = window.innerWidth;
  window.orig_height = window.innerHeight;
}

function reset_layers() {
    if (window.innerWidth != orig_width || window.innerHeight != orig_height) {
      location.reload();
    }
}

//declare globals to build object reference
var whichDom = "", styleObj = ""
var isNav4, isNav6, isIE
var isBrand = navigator.appName
var agt = navigator.userAgent.toLowerCase()
var navVer = parseInt(navigator.appVersion)

//these variables are handy for determining which styles to load
isNav4 = (isBrand == "Netscape" && navVer < 5) ? true : false
isNav6 = (isBrand == "Netscape" && navVer >= 5) ? true : false
isNav46 = ((isBrand == "Netscape") && (parseFloat(navigator.appVersion) >= parseFloat(4.6)) && (parseFloat(navigator.appVersion) < parseFloat(4.7))) ? true : false
isNav47 = ((isBrand == "Netscape") && (parseFloat(navigator.appVersion) >= parseFloat(4.7))) ? true : false
isIE = ((agt.indexOf("msie") != -1) && (parseInt(navVer) >= 4)) ? true : false

//load a style sheet depending on users browser
/*
if (isNav4) {
 document.write('<link="stylesheet" href="nav4style.css">')
} else if (isNav6) {
 document.write('<link="stylesheet" href="nav6style.css">')
} else {
 document.write('<link="stylesheet" href="isIEstyle.css">')
}
*/

//construct object reference
if(isNav6)  {
  whichDom = '.getElementById("'
  styleObj = '").style'
} else if (isNav4)  {
  whichDom = '["'
  styleObj = '"]'
} else {
  whichDom = ".all."
  styleObj = ".style"
}

//API object reference
function theObject(obj) {
var theObj
 if (typeof obj == "string")
  theObj = eval("document" + whichDom + obj + styleObj)
 else
  theObj = obj
  return theObj
}

function theObjectTxt(obj) {
var theObj
 if (typeof obj == "string")
  theObj = "document" + whichDom + obj + styleObj
 else
  theObj = obj
  return theObj
}

function theObjectIn(obj,obj2) {
var theStr = theObjectTxt(obj2);
var theObj
if (isNav4) {
 if (typeof obj == "string")
  theObj = eval(theStr + ".document" + whichDom + obj + styleObj)
 else
  theObj = obj
 } else theObj = theObject(obj);
return theObj
}

function moveObjTo(obj, x, y) {
var theObj = theObject(obj)
 if (isNav4) {
  theObj.moveTo(x,y)
 } else if (isIE) {
  theObj.pixelLeft = x
  theObj.pixelTop = y
 } else {//nav6
  theObj.left = x +"px"
  theObj.top = y +"px"
 }
}

//nav6 returns string values for positionable elements ie. left "100px"
//must parse string values and convert to number values
function moveObjBy(obj, deltaX, deltaY) {
var theObj = theObject(obj)
  if (isNav4) {
    theObj.moveBy(deltaX, deltaY)
  } else if (document.all) {
    theObj.pixelLeft += deltaX
    theObj.pixelTop += deltaY
  } else  {
    var theLeft = getObjLeft(theObj)
    var theTop = getObjTop(theObj)
    setObjLeft(theObj, parseInt(theLeft)+deltaX)
    setObjTop(theObj, parseInt(theTop)+deltaY)
  }
}

function setZIndex(obj, z) {
var theObj = theObject(obj)
 theObj.zIndex = z
}

function getZIndex(obj) {
var theObj = theObject(obj)
 return theObj.zIndex
}

function setBGColor(obj, color) {
var theObj = theObject(obj)
 if (isNav4) {//ng
  theObj.bgColor = color
 } else {
  theObj.backgroundColor = color//ok IE and nav6
    //beware nav6 returns rgb values ie rgb(255 255 255) when
  //specifying hexidecimal value
    //but will return colornames if specified
  //for example, if background-color:red is specified nav6 returns red
  // if background-color #ff0000 is specified nav6 returns 255 000 000
 }
}

function getBGColor(obj) {
var theObj = theObject(obj)
 if (isNav4) {//buggy
  return theObj.bgColor
 } else {//IE returns named value or hexadecimal
  return theObj.backgroundColor
  //nav6 returns rgb(255 255 255)!!!
 }
}

function setBorderColor(obj, color)  {
var theObj = theObject(obj)//ng nav4
  theObj.borderColor = color//ok IE and nav6
}

//netscape 6 returns parameters for all four borders
function getBorderColor(obj) {
var theObj = theObject(obj)
 return theObj.borderColor
}

function show(obj) {
var theObj = theObject(obj)
 theObj.visibility = "visible"
}

function hide(obj) {
var theObj = theObject(obj)
 theObj.visibility = "hidden"
}

//nav4 reads and returns value of "show" but also reads "visible"
//nav4 reads and returns value of "hide" but also reads "hidden"
//test???
function getObjVisibility(obj) {
var theObj = theObject(obj)
 if (theObj.visibility == "" || theObj.visibility == null) {
  return "visible"
 } else {
  return theObj.visibility
 }
}

//nav6 returns string value ie left = 100px
//parse values???
function getObjLeft(obj)  {
var theObj = theObject(obj)
  if (isNav4) {
    return theObj.left
  } else if (isIE)  {
    return theObj.pixelLeft
  } else  {
    return parseInt(theObj.left)
  }
}

function setObjLeft(obj, l) {
var theObj = theObject(obj)
 if (isNav4) {
  theObj.left = l
 } else if (isIE) {
  theObj.pixelLeft = l
 } else  {//nav6
    theObj.left = l + "px"
  }
}

function getObjTop(obj)  {
var theObj = theObject(obj)
  if (isNav4) {
    return theObj.top
  } else if (isIE)  {
    return theObj.pixelTop
  } else  {
    return parseInt(theObj.top)
  }
}

function setObjTop(obj, t) {
var theObj = theObject(obj)
 if (isNav4) {
  theObj.top = t
 } else if (isIE) {
  theObj.pixelTop = t
 } else  {//nav6
    theObj.top = t + "px"
  }
}

function getObjHeight(obj) {
var theObj = theObject(obj)
 if (isNav4) {
  return theObj.clip.height
 } else if (isIE) {
  return theObj.pixelHeight
 } else {//nav6
  return parseInt(theObj.height)
 }
}

function setObjHeight(obj,h) {
var theObj = theObject(obj)
 if (isNav4) {//does not work nav4
  theObj.height = h
 } else if (isIE) {
  theObj.pixelHeight = h
 } else  {//nav6
    theObj.height = h + "px"
  }
}

function getObjWidth(obj) {
var theObj = theObject(obj)
 if (isNav4) {
  return theObj.clip.width
 } else if (document.all) {
  return theObj.pixelWidth
 } else {//nav6
  return parseInt(theObj.width)
 }
}

function setObjWidth(obj,w) {
 var theObj = theObject(obj)
 if (isNav4 || isNav6) {//does not work nav4
  theObj.width = w
 } else {
  theObj.pixelWidth = w
 }
}

//set dimensions in one shot
//ie4 and nav6 only
function setObjDimensions(obj,h,w) {
var theObj = theObject(obj)
 if (isNav4) {//does not work nav4
  theObj.height = h
  theObj.width = w
 } else if (isIE) {
  theObj.pixelHeight = h
  theObj.pixelWidth = w
 } else {
  theObj.height = h + "px"
  theObj.width = w + "px"
 }
}

function getInsideWindowWidth() {//ok
 if (isNav4 || isNav6) {
  return window.innerWidth
 } else {
  return document.body.clientWidth
 }
}

function getInsideWindowHeight() {//ok
 if (isNav4 || isNav6) {
  return window.innerHeight
 } else {
  return document.body.clientHeight
 }
}

function getPageLeft(obj) {
var theObj = theObject(obj)
 if (isNav4 || isNav6) {
 return theObj.pageX
 } else {
   return theObj.offsetLeft
 }
}

function getPageTop(obj) {
var theObj = theObject(obj)
 if (isNav4 || isNav6) {
 return theObj.pageY
 } else {
   return theObj.offsetTop
 }
}

//change a div's content
//usage: changeObj('object','hello',startPosition,length)
//can create some cool effects for dynamic menus in conjuntion with showAndHide()
function swapText(obj, replace, start, finish) {
 if (isNav4) {
  document[obj].writeln(replace)
  document[obj].close()
 } else if (isIE) {
  document.all(obj).innerHTML = replace
 } else {//netscape 6
  document.getElementById(obj).firstChild.replaceData(start,finish,replace)
 }
}

//this is a pretty neat sliding layer routine that slides a layer to the center of the users screen
//the usage example slides a layer at a 45 degree angle across the users screen
//usage: slide('object',20,20,100)
//the finalLeft variable can also be a fixed integer
//other sliding scripts are also available. email webmaster@xiio.com
var finalLeft = new Array()
var timerID = new Array()
var count = 0
function slide(obj,x,y,speed) {
count++
finalLeft[count] = parseInt( (getInsideWindowWidth()/2) - (getObjWidth(obj)/2) )
var expr =
 'if (getObjLeft("' +obj+ '") <' +finalLeft[count]+ ') {' +
    'moveObjBy("' +obj+ '"' + ',' +x+ ',' +y+ ')' +
  '} else  {' +
    'clearInterval(' +timerID[count]+ ')' +
  '}'
  timerID[count] = setInterval(expr,speed)
}

//showHide() is a utility function using the custom javascript API
//usage: showHide('objectName', '[show | hide | toggle]')
//can also alter the visibility of more than one object
//this example alters the visibility of three separate objects
//-----------showHide('object1','hide','object2','show','object3','toggle')
function showHide() {
var args = arguments
 for (var i = 0; i < args.length; i += 2) {
 if (typeof args[i] == "string")
  var theObj = theObject(args[i])
 if (args[i+1] == "toggle")
  if ((getObjVisibility(theObj) == "visible") || (getObjVisibility(theObj) == "show"))
   hide(theObj)
  else show(theObj)
  else if (args[i+1] == "hide") hide(theObj)
  else if (args[i+1] == "show") show(theObj)
 }
}

//revised showHide() to handle z-index issue with navigator 6
function showAndHide() {
var args = arguments
 for (var i = 0; i < args.length; i += 2) {
  if (typeof args[i] == "string") {
   var theObj = theObject(args[i])
  }
  if (args[i+1] == "toggle") {
   if ((getObjVisibility(theObj) == "visible") || (getObjVisibility(theObj) == "show")) {
    hide(theObj)
        setZIndex(theObj,0)
   } else {
    setZIndex(theObj,100)
        show(theObj)
   }
  } else if (args[i+1] == "hide")  {
      hide(theObj)
      setZIndex(theObj,0)
    } else if (args[i+1] == "show")  {
      show(theObj)
      setZIndex(theObj,100)
    } else  {
      theObj.visibility = "visible"
    }
 }
}


/*
open a new window, center it and set dimensions relative to the users screen
url: url of new document
name: document name
statbar: boolean yes or no for statusbar display
scroll: boolean yes or no for scrollbars
locate: boolean yes or no for locationbars
x: set the new window height with a percentage value relative to the users screen
y: set the new window width with a pecentage value relative to the users screen
usage: javascript:winOpen('index.htm','newwin','yes','yes','yes',.5,.5)
*/
function winOpen(url,name,statbar,scroll,locate,x,y) {
var adjustedleft = 8//optional
var adjustedheight = 30//adjust height because of windows taskbar
var screenwidthremainder = screen.availWidth%2//really not needed, but won't hurt
var screenheightremainder = screen.availHeight%2
var screenwidth = screen.availWidth - screenwidthremainder
var screenheight = screen.availHeight - screenheightremainder
var winheight = parseInt(screenheight)* y//set new window height properties
var winwidth = parseInt(screenwidth)* x//set new window width properties
var winleft = parseInt(screenwidth/2) - (winwidth/2) - adjustedleft//optional
var wintop = parseInt(screenheight/2) - (winheight/2) - adjustedheight

var win = window.open(url,name,'width=' +winwidth+ ',height=' +winheight+',status=' +statbar+',scrollbars='+scroll+',location='+locate+',top='+wintop+',left='+winleft)
}

/*
set status bar message on mouseover and mouseout
usage: onmouseover="return msg('Hello')" onmouseout="return msg('Goodbye')"
does nothing in netscape 6
*/
function msg(x) {
if (window.status !=x)
window.status = x
return true
}

function checkBrowser(){
 this.ver=navigator.appVersion
 this.dom=document.getElementById&&(!document.all)?1:0
 this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0;
 this.ie4=(document.all && !this.dom)?1:0;
 this.ns5=(this.dom && parseInt(this.ver) >= 5) ?1:0;
 this.ns4=(document.layers && !this.dom)?1:0;
 this.bw=(this.ie5 || this.ie4 || this.ns4 || this.ns5)
 return this
}

bw=new checkBrowser()

function makeObj(obj,nest){
    nest=(!nest) ? '':'document.'+nest+'.'
 if (bw.dom){
  this.el=[];
  this.el[obj] = document.getElementById(obj);
 } else {
 this.el=bw.ie4?document.all[obj]:bw.ns4?eval(nest+'document.'+obj):0;
 }
   this.css=bw.dom?this.el[obj].style:bw.ie4?document.all[obj].style:bw.ns4?eval(nest+'document.'+obj):0;
 this.scrollHeight=bw.ns4?this.css.document.height:bw.ie4?this.el.offsetHeight:bw.dom?this.el[obj].offsetHeight:0;
 this.clipHeight=bw.ns4?this.css.clip.height:bw.ie4?this.el.offsetHeight:bw.dom?this.el[obj].offsetHeight:0;
// this.up=goUp;this.down=goDown;
// this.moveIt=moveIt; this.x; this.y;
//    this.obj = obj + "Object"
//    eval(this.obj + "=this")
    return this
}