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_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=val.name; 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!='R') { num = parseFloat(val);
        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 (num<min || max<num) 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 == '');
}

function popUp(URL) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=1,menubar=0,resizable=0,width=800,height=600');");
}

function popUp2(URL) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=1,menubar=0,resizable=0,width=1200,height=600');");
}

function isEmpty(val){
                if(!val.value){
                                return false;
                }
                return true;
}

function isValidEmail(val) {
                val = val.value;
                return (val.indexOf(".") > 0) && (val.indexOf("@") > 0);
 
}

function validateForm_12345(){
                var name = document.getElementById('name');
                var email = document.getElementById('email');            
                var tel = document.getElementById('tel');
				var message = document.getElementById('message');                
                var verif_box = document.getElementById('verif_box');
                
                var error = 'Please insert a ';
                
                if(!isEmpty(name)){
                                name.focus();
                                window.alert(error+'valid name');
                                return false;
                }
                if(!isValidEmail(email)){
                                email.focus();
                                window.alert(error+'email address');
                                return false;
                }
                if(!isEmpty(tel)){
                                tel.focus();
                                window.alert(error+'telephone number');
                                return false;
                }
                if(!isEmpty(message)){
                                message.focus();
                                window.alert(error+'message');
                                return false;
                }
                
                if(!isEmpty(verif_box)){
                                verif_box.focus();
                                window.alert(error+'verification number');
                                return false;
                }
                
                return true;
}
function GetXmlHttpObject(){
	var xmlHttp=null;
	try{
	// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
	}
	catch (e){
	//Internet Explorer
		try	{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e){
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return xmlHttp;
}


function callmyajax(typeId){ 
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null){
		alert ("Browser does not support AJAX - Please update");
		return;
	}
	var url="http://bcdev.co.uk/OakleeHousing/ajaxGetHousing.php?id="+typeId;
	xmlHttp.onreadystatechange=function() { ajaxStateChanged("ajaxTarget"); };
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function ajaxStateChanged(obj) {
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") { 
		window.document.getElementById(obj).innerHTML=xmlHttp.responseText 
	}
}

var fadearray=new Array();
var fadeclear=new Array();
var dom=(document.getElementById);
var iebrowser=document.all;
 
function fadeshow(theimages, fadewidth, fadeheight, delay){
	this.mouseovercheck=0;
	this.delay=delay;
	this.degree=10; //opacity degree (10%)
	this.curimageindex=0;
	this.nextimageindex=1;
	fadearray[fadearray.length]=this;
	this.slideshowid=fadearray.length-1;
	this.canvasbase="canvas"+this.slideshowid;
	this.curcanvas=this.canvasbase+"_0";
	this.theimages=theimages;
	this.postimages=new Array(); //preload images
	for (p=0;p<theimages.length;p++){
		this.postimages[p]=new Image();
		this.postimages[p].src=theimages[p][0];
	}
	
	var fadewidth=fadewidth;
	var fadeheight=fadeheight;
	 
	if (iebrowser&&dom||dom){ //IE5+
		document.write('<div id="master'+this.slideshowid+'" style="position:relative;width:'+fadewidth+'px;height:'+fadeheight+'px;overflow:hidden;"><div id="'+this.canvasbase+'_0" style="position:absolute;width:'+fadewidth+'px;height:'+fadeheight+'px;top:0;left:0;filter:progid:DXImageTransform.Microsoft.alpha(opacity=10);opacity:0.1;-moz-opacity:0.1;-khtml-opacity:0.1;background-color:'+fadebgcolor+'"></div><div id="'+this.canvasbase+'_1" style="position:absolute;width:'+fadewidth+'px;height:'+fadeheight+'px;top:0;left:0;filter:progid:DXImageTransform.Microsoft.alpha(opacity=10);opacity:0.1;-moz-opacity:0.1;-khtml-opacity:0.1;background-color:'+fadebgcolor+'"></div></div>');
	} else {
		document.write('<div><img name="defaultslide'+this.slideshowid+'" src="'+this.postimages[0].src+'"></div>')
	}
	
	if (iebrowser&&dom||dom) //if IE5+ or modern browsers such as Firefox
		this.startit()
	else{
		this.curimageindex++
		setInterval("fadearray["+this.slideshowid+"].rotateimage()", this.delay)
	}
	return;
}

function fadepic(obj){
	if (obj.degree<100){
		obj.degree+=10;
		if (obj.tempobj.filters&&obj.tempobj.filters[0]){
			if (typeof obj.tempobj.filters[0].opacity=="number") { //IE6+
				obj.tempobj.filters[0].opacity=obj.degree;
			} else { //IE5.5-
				obj.tempobj.style.filter="alpha(opacity="+obj.degree+")";
			}
		}else if (obj.tempobj.style.MozOpacity){
			obj.tempobj.style.MozOpacity=obj.degree/101;
		}else if (obj.tempobj.style.KhtmlOpacity){
			obj.tempobj.style.KhtmlOpacity=obj.degree/100;
		}else if (obj.tempobj.style.opacity&&!obj.tempobj.filters){
			obj.tempobj.style.opacity=obj.degree/101
		}
	}else{
		clearInterval(fadeclear[obj.slideshowid])
		obj.nextcanvas=(obj.curcanvas==obj.canvasbase+"_0")? obj.canvasbase+"_0" : obj.canvasbase+"_1"
		obj.tempobj=iebrowser? iebrowser[obj.nextcanvas] : document.getElementById(obj.nextcanvas)
		obj.populateslide(obj.tempobj, obj.nextimageindex)
		obj.nextimageindex=(obj.nextimageindex<obj.postimages.length-1)? obj.nextimageindex+1 : 0
		setTimeout("fadearray["+obj.slideshowid+"].rotateimage()", obj.delay)
	}
	return;
}
 
fadeshow.prototype.populateslide=function(picobj, picindex){
	var slideHTML="";
	slideHTML='<img src="'+this.postimages[picindex].src+'" alt="" />'; //IMG TAG WRITTEN HERE
	picobj.innerHTML=slideHTML;
}
 
 
fadeshow.prototype.rotateimage=function(){
	if (this.mouseovercheck==1) {
		setTimeout(function(){cacheobj.rotateimage()}, 100);
	} else if (iebrowser&&dom||dom){
		this.resetit();
		var crossobj=this.tempobj=iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas);
		crossobj.style.zIndex++;
		fadeclear[this.slideshowid]=setInterval("fadepic(fadearray["+this.slideshowid+"])",50);
		this.curcanvas=(this.curcanvas==this.canvasbase+"_0")? this.canvasbase+"_1" : this.canvasbase+"_0";
	} else {
		var ns4imgobj=document.images['defaultslide'+this.slideshowid];
		ns4imgobj.src=this.postimages[this.curimageindex].src;
	}
	this.curimageindex=(this.curimageindex<this.postimages.length-1)? this.curimageindex+1 : 0;
	return;
}
 
fadeshow.prototype.resetit=function(){
	this.degree=10;
	var crossobj=iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas);
	if (crossobj.filters&&crossobj.filters[0]){

		if (typeof crossobj.filters[0].opacity=="number") { //IE6+
			crossobj.filters(0).opacity=this.degree;
		} else { //IE5.5-
			crossobj.style.filter="alpha(opacity="+this.degree+")";
		}
	} else if (crossobj.style.MozOpacity) {
		crossobj.style.MozOpacity=this.degree/101;
	} else if (crossobj.style.KhtmlOpacity) {
		crossobj.style.KhtmlOpacity=this.degree/100;
	} else if (crossobj.style.opacity&&!crossobj.filters){
		crossobj.style.opacity=this.degree/101;
	}
}
 
 
fadeshow.prototype.startit=function(){
	var crossobj=iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas);
	this.populateslide(crossobj, this.curimageindex);
	this.rotateimage();
	return;
}

//used to covert a string address into latitude and longitude for google maps api
function showAddress(address) 
{
	if (geocoder) 
	{
		geocoder.getLatLng(address,
		function(point) 
		{
			if (!point) 
			{
				alert(address + " not found");
			} 
			else 
			{
				map.setCenter(point, 13);
				var marker = new GMarker(point);
				map.addOverlay(marker);
			}
		});
	}
}