var browserIE  = (navigator.appVersion.toLowerCase().indexOf("msie") != -1)?true:false;
var browserWin = (navigator.appVersion.toLowerCase().indexOf("win") != -1)?true:false;
var browserFF = (navigator.userAgent.toLowerCase().indexOf("firefox") != -1)?true:false;
var browserOpera = (navigator.userAgent.toLowerCase().indexOf("opera") != -1)?true:false;
var sound_enabled = false;

function playSound() { }
function playInitSound() { }

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
  var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
  if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0 && parent.frames.length) {
	d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_displayStatusMsg(msgStr) { //v1.0
  window.status=msgStr;
  document.MM_returnValue = true;
}

function displayStandardMsg() {
  window.status="GENDEC  -  We strive for Perfection in Web-Space";
  document.MM_returnValue = true;
}

function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}

function $() {
  var elements = new Array();
  for (var i = 0; i < arguments.length; i++) {
	var element = arguments[i];
	if (typeof element == 'string')
	  element = document.getElementById(element);
	if (arguments.length == 1)
	  return element;
	elements.push(element);
  }
  return elements;
}
		 
function setContentHeight() {
  var diff = getHeight();
  var ydiff = (diff - 708 > 0)?diff - 708:0;
  document.getElementById("menu_group").style.paddingBottom = (ydiff*0.071) + "em";
  document.getElementById("frame_wrap").style.height = (ydiff + 442)*0.071 + "em";
}

function getHeight() {
  if( window.innerHeight )
    return window.innerHeight;
  if( document.documentElement.clientHeight )
	return document.documentElement.clientHeight;
  if( document.body )
	return document.body.clientHeight;
  return null;
}

function setImage( elemId, srcName ) {
  document.getElementById(elemId).src = "images/" + srcName;
}

function swapGears() {
  var ix, elem;
  var nodeList = document.getElementById("gear_box").childNodes;
  for (ix=0; ix<nodeList.length; ix++) {
	elem = nodeList[ix];  
	if ( elem.className == "top_cog" || elem.className == "bottom_cog" )
      elem.style.visibility = (elem.style.visibility == "hidden")?"visible":"hidden";
  }
  return false;
}

function disableSubmit() {
  playSound('click2');
  $('send').disabled = true;
  setTimeout( function() {$('send').disabled = false;}, 2000 );
  return true;
}

function handleResponse(r_code) {
  var elem2, elem1 = document.getElementById("in-name");
  elem2 = document.getElementById("in-email");
  elem1.style.backgroundColor = elem2.style.backgroundColor = "#ffffff";
  if( r_code == 0 ) {
	document.forms[0].reset();
  }
  if( r_code == 1 ) {
	elem1.style.backgroundColor = "#ffbbbb";
	elem1.focus();
  }
  if( r_code == 2 ) {
	elem2.style.backgroundColor = "#ffbbbb";
	elem2.focus();
  }	
}