// convert all characters to lowercase to simplify testing
var agt=navigator.userAgent.toLowerCase();

// *** BROWSER VERSION ***
// Note: On IE5, these return 4, so use is_ie5up to detect IE5.
var is_major = parseInt(navigator.appVersion);
var is_minor = parseFloat(navigator.appVersion);

// Note: Opera and WebTV spoof Navigator.  We do strict client detection.
// If you want to allow spoofing, take out the tests for opera and webtv.
var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
            && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
            && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1));
var is_nav2 = (is_nav && (is_major == 2));
var is_nav3 = (is_nav && (is_major == 3));
var is_nav4 = (is_nav && (is_major == 4));
var is_nav4up = (is_nav && (is_major >= 4));
var is_navonly      = (is_nav && ((agt.indexOf(";nav") != -1) ||
                        (agt.indexOf("; nav") != -1)) );
var is_nav6 = (is_nav && (is_major == 5));var is_nav6up = (is_nav && (is_major >= 5));
var is_gecko = (agt.indexOf('gecko') != -1);

var is_mac    = (agt.indexOf("mac")!=-1);

var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
var is_ie3    = (is_ie && (is_major < 4));
var is_ie4    = (is_ie && (is_major == 4) && (agt.indexOf("msie 5")==-1) );
var is_ie4up  = (is_ie  && (is_major >= 4));
var is_ie5    = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")!=-1) );
var is_ie5_5  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.5") !=-1));
var is_ie5up  = (is_ie  && !is_ie3 && !is_ie4);
var is_ie5_5up =(is_ie && !is_ie3 && !is_ie4 && !is_ie5);

// Scroll Mode (crawl or jump)
var ScrollMode = new Object();
ScrollMode.CRAWL = 'crawl';
ScrollMode.JUMP = 'jump';

function showDisplayBox(id) {
   if (! id) { return; }
    var divs = document.getElementsByTagName("div");
    for (var i=0;i<=divs.length;i++) 
    {
        if (divs[i]) {
            if (divs[i].className == "DisplayBox") {
                divs[i].className = "hide";
                if (divs[i].style && divs[i].style.visibility) {
                    divs[i].style.visibility="hidden";
                }
            }
        }
    }
    var showBox = document.getElementById(id);
    if (showBox) {
        showBox.className = "DisplayBox";
        if (showBox.style && showBox.style.visibility) {
            showBox.style.visibility="visible";
        }
    }
    return false;
}

function showElement(id) {
   if (! id) { return; }
   var elem = d(id);
    
   if (elem) {
     elem.className = "show";
     if (elem.style && elem.style.visibility) {
       elem.style.visibility = "visible";
     }
   }
}

function hideElement(id) {
   if (! id) { return; }
   var elem = d(id);
    
   if (elem) {
     elem.className = "hide";
     if (elem.style && elem.style.visibility) {
       elem.style.visibility = "hidden";
     }
   }
}

function clickButton(id) {
    var button=document.getElementById(id);
    if (button) {
        if (is_gecko  && button.href.indexOf("javascript") == 0 ) { eval(button.href); }
        else { button.click(); }
    }
    else {
        alert('Button not found: ' + id);
    }
}

// shortcut method
function d(id) {
    return document.getElementById(id);
} 

// selected value
function sv(id) {
	var element = d(id);
	var options, i;
	if (element) {
		options = element.getElementsByTagName("option");
		for (i=0;i<options.length;i++) {
			var option = element.getElementsByTagName("option")[i];
			if (option.selected) {
				return option.value;
			}
		}
	}
	return null;
}

// set html
function sh(id, content) {
  if (d(id)) { d(id).innerHTML = content; }
  //else { alert(id + ' not found'); }
}

function loadWindow() {
    if (d("ProductMoreInfoContent")) {
        jumpToHash();
    }
}

function jumpToHash() {
    setTimeout('doJumpToHash()', 30);
}

function doJumpToHash() {
    if (window.location.href.indexOf('#') != -1) {
        var hash = window.location.href.substring(window.location.href.indexOf('#'));
        var anchorName = hash.substring(1);
        showDisplayBox(anchorName + 'Box');
        if (!is_mac && !is_ie5up) { 
            window.location.href = hash; 
        }
        //scrollToElement(anchorName + 'Box', ScrollMode.JUMP);
    }
}

function scrollToElement(id, mode) {
    if (ScrollMode.CRAWL == mode) {
        crawlToElement(id);
    }
    else if (ScrollMode.JUMP == mode) {
        jumpToElement(id)
    }
    else {
        // default to jump
        jumpToElement(id)
    }
}

function jumpToElement(id) {
    var xPos = 0;
    var yPos = findYPos(d(id));
    window.scrollTo(xPos, yPos);
}

var lastYPos = -50;
function crawlToElement(id) {
  var xPos = 0;
  var yPos = findYPos(d(id));
  var distance = Math.abs(yPos - getCurrentYPos());
  var moveDistance = 10;
  if (distance > moveDistance) {
    if (yPos < getCurrentYPos()) {
      yPos = getCurrentYPos() - moveDistance;
    }
    else {
      yPos = getCurrentYPos() + moveDistance;
      window.scrollTo(xPos, yPos);
      if (lastYPos != getCurrentYPos()) {
        setTimeout("crawlToElement('" + id + "');", 10);
      }
      lastYPos = getCurrentYPos();
      return;
    }
  }
  window.scrollTo(xPos, yPos);
}

function scrollToPosition(xPos, yPos) {
  window.scrollTo(xPos, yPos);
}

function findXPos(obj)
{
    if (!obj) { return 0; }
	var curleft = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curleft += obj.offsetLeft
			obj = obj.offsetParent;
		}
	}
	else if (obj.x)
		curleft += obj.x;
	return curleft;
}

function findYPos(obj)
{
    if (!obj) { return 0; }
	var curtop = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curtop += obj.offsetTop
			obj = obj.offsetParent;
		}
	}
	else if (obj.y)
		curtop += obj.y;
	return curtop;
}

function getCurrentYPos() {
    if (document.body && document.body.scrollTop)
        return document.body.scrollTop;
    if (document.documentElement && document.documentElement.scrollTop)
        return document.documentElement.scrollTop;
    if (window.pageYOffset)
        return window.pageYOffset;
    return 0;
}

function PopupWinLg(strURL)
	{
		win = window.open(strURL,'popupwinlg','toolbar=no,menubar=no,location=no,status=no,scrollbars=yes,resizable=yes,width=670,height=640,top=0,left=0');
		win.focus();
	}
	
	function PopupWinXtraLg(strURL)
	{
		win = window.open(strURL,'popupwinlg','toolbar=no,menubar=no,location=no,status=no,scrollbars=yes,resizable=yes,width=700,height=550,top=20,left=20');
		win.focus();
	}
	
	function PopupWinMed(strURL)
{
	win = window.open(strURL,'popupmed','toolbar=no,menubar=no,location=yes,status=no,scrollbars=yes,resizable=yes,width=600,height=400');
	win.focus();
}

	function PopupWinSmall(strURL)
{
	win = window.open(strURL,'popupmed','toolbar=no,menubar=no,location=yes,status=no,scrollbars=yes,resizable=yes,width=400,height=200');
	win.focus();
}

window.onload = loadWindow