// JavaScript Document
var firstDot = '';
function mouseOverEffect(imageName, targetImage) {
	document.getElementById(imageName).src = targetImage;
}
function showPic(imageName, targetImage) {
	mouseOverEffect(imageName, targetImage);
}
function showLayer(layerName, displayStatus) {
	document.getElementById(layerName).style.display = displayStatus;
}
function changeDot(roomName) {
	document.getElementById(roomName).src = 'images/dot_green.png';
	if (firstDot != '') {
		document.getElementById(firstDot).src = 'images/dot_purple.png';
		firstDot = roomName;
	} else {
		firstDot = roomName;
	}
}


function isValidNumber(inpString) {
   return /^[-+]?\d+(\.\d+)?$/.test(inpString);
}


function Validate_String(string, return_invalid_chars)
         {
         valid_chars = '1234567890-_.^~abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
         invalid_chars = '';
         
         if(string == null || string == '')
            return(true);
         
         //For every character on the string.   
         for(index = 0; index < string.length; index++)
            {
            char = string.substr(index, 1);                        
            
            //Is it a valid character?
            if(valid_chars.indexOf(char) == -1)
              {
              //If not, is it already on the list of invalid characters?
              if(invalid_chars.indexOf(char) == -1)
                {
                //If it's not, add it.
                if(invalid_chars == '')
                   invalid_chars += char;
                else
                   invalid_chars += ', ' + char;
                }
              }
            }                     
            
         //If the string does not contain invalid characters, the function will return true.
         //If it does, it will either return false or a list of the invalid characters used
         //in the string, depending on the value of the second parameter.
         if(return_invalid_chars == true && invalid_chars != '')
           {
           last_comma = invalid_chars.lastIndexOf(',');
           
           if(last_comma != -1)
              invalid_chars = invalid_chars.substr(0, $last_comma) + 
              ' and ' + invalid_chars.substr(last_comma + 1, invalid_chars.length);
                      
           return(invalid_chars);
           }
         else
           return(invalid_chars == ''); 
         }


function Validate_Email_Address(email_address)
{
	var emailRegEx = /^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i;
	var result = true;
	if(email_address.search(emailRegEx) == -1) {
		result = false;
	}
	return result;
}
		 
// (C) 2000 www.CodeLifter.com
// http://www.codelifter.com
// Free for all users, but leave in this  header
// NS4-6,IE4-6
// Fade effect only in IE; degrades gracefully
// ------------------------------------------------------------------------- //

// Set slideShowSpeed (milliseconds)
var slideShowStart = false;
var slideShowSpeed = 8000;
// Agent sniffer shamelessly 'stolen' from the excellent X library from cross-browser.com
var xOp7=false,xOp5or6=false,xIE4Up=false,xNN4=false,xUA=navigator.userAgent.toLowerCase();
if(window.opera){
  xOp7=(xUA.indexOf('opera 7')!=-1 || xUA.indexOf('opera/7')!=-1);
  if (!xOp7) xOp5or6=(xUA.indexOf('opera 5')!=-1 || xUA.indexOf('opera/5')!=-1 || xUA.indexOf('opera 6')!=-1 || xUA.indexOf('opera/6')!=-1);
}
else if(document.layers) xNN4=true;
else {xIE4Up=document.all && xUA.indexOf('msie')!=-1 && parseInt(navigator.appVersion)>=4;}

// Duration of crossfade (seconds)
var crossFadeDuration = 4;
var Pic = new Array();
var t;
var j = 0;
var p = Pic.length;
var pos = j;
var preLoad = new Array();

function preLoadPic(index)
{
	if (Pic[index] != ''){
		window.status='Loading : '+Pic[index];
		preLoad[index] = new Image();
		preLoad[index].src = Pic[index];
		Pic[index] = '';
		window.status='';
	}
}

function runSlideShow(){
	if (xIE4Up){
		document.images.SlideShow.style.filter="blendTrans(duration=2)";
		document.images.SlideShow.style.filter= "blendTrans(duration=crossFadeDuration)";
		document.images.SlideShow.filters.blendTrans.Apply();
	}
	document.images.SlideShow.src = preLoad[j].src;
	if (xIE4Up){
		document.images.SlideShow.filters.blendTrans.Play();
	}	
	pos = j;
	j = j + 1;
	if (j > (p-1)) {
		j = 0;
	}
	t = setTimeout('runSlideShow()', slideShowSpeed);		
	preLoadPic(j);
}

// MM functions

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_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_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=args[i+1]; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
      } else if (test.indexOf('isNotZero')!=-1) {
        if (val == 0) errors+='- '+nm+' is required.\n';
      } else if (test!='R') {
        if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (val<min || max<val) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
  } if (errors) alert('The following error(s) occurred:\n'+errors);
  document.MM_returnValue = (errors == '');
}

var msg01='';
var msg02='';
var msg03='';
var msg04='';
var msg05='';
function MM_validateForm2() { //v4.0
  if (msg01 == '')  msg01 = ' must contain an e-mail address.'; 
  if (msg02 == '')  msg02 = ' is required.'; 
  if (msg03 == '')  msg03 = ' must contain a number.'; 
  if (msg04 == '')  msg04 = ' must contain a number between '; 
  if (msg05 == '')  msg05 = 'The following error(s) occurred:'; 

  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm2.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
	if (val) { nm=args[i+1]; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+ nm + msg01 +'\n';
      } else if (test.indexOf('isNotZero')!=-1) {
        if (val == 0) errors+='- '+ nm + msg02 +'\n';
      } else if (test!='R') {
        if (isNaN(val)) errors+='- '+ nm + msg03 + '\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (val<min || max<val) errors+='- '+nm + msg04 +min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+ nm + msg02 + '\n'; }
  } if (errors) alert(msg05+'\n'+errors);
  document.MM_returnValue = (errors == '');
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}