var xmlHttp;
var imagepointer = 0;
var ROOTURL = "http://www.aldeburghlettings.co.uk/";

//---------------------------------------------------------
//
// Generic Ajax
//
//---------------------------------------------------------

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;
}

//---------------------------------------------------------
//
// Property functions
//
//---------------------------------------------------------

function eCheck(str) 
{	
	 var at="@";
	 var dot=".";
	 var lat=str.indexOf(at);
	 var lstr=str.length;
	 var ldot=str.indexOf(dot);
	 
	 if (str.indexOf(at)==-1) {
	    return false;
	 }
	 if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr) {
	    return false;
	 }
	 if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr) {
	     return false;
	 }
	 if (str.indexOf(at,(lat+1))!=-1) {
	    return false;
	 }
	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot) {
	    return false;
	 }
	 if (str.indexOf(dot,(lat+2))==-1) {
	    return false;
	 }
	
	 if (str.indexOf(" ")!=-1) {
	    return false;
	 }
	 
	 return true;					
}

function ValidateForm(oForm)
{
	var form = document.getElementById(oForm);
	var err = "";
	
	for(i=0; i<form.elements.length; i++)
	{
		if(form.elements[i].getAttribute("required") == "true")
		{
			if(form.elements[i].value == "")
			{
				err += form.elements[i].getAttribute("info") + "\n";
			}
			
			if(form.elements[i].name.match("email"))
			{
				if(!eCheck(form.elements[i].value))
				{
					err += form.elements[i].name + " is not valid\n";
				}
			}
			
			if(form.elements[i].getAttribute("type") == "checkbox")
			{
				if(!form.elements[i].checked)
				{
					err += form.elements[i].getAttribute("info") + "\n";
				}
			}
		}
	}
	
	return err;
}

function CollectInfo(oForm)
{
	var form = document.getElementById(oForm);
	var err = "";
	var array = new Array(form.elements.length);
	
	for(i=0; i<form.elements.length; i++)
	{
		if(form.elements[i].getAttribute("type") == "checkbox")
		{
			if(form.elements[i].checked)
			{
				array[i] = form.elements[i].name + "=" + form.elements[i].value;
			}
		}
		else
		{
			if(form.elements[i].value != "")
			{
				array[i] = form.elements[i].name + "=" + form.elements[i].value;
			}
				
			if(form.elements[i].name.match("email"))
			{
				if(!eCheck(form.elements[i].value))
				{
					array[i] = form.elements[i].name + "=" + form.elements[i].value;
				}
			}
		}
	}
	
	return array;
}


function LockForm(oForm)
{
	var form = document.getElementById(oForm);
	
	for(i=0; i<form.elements.length; i++)
	{
		form.elements[i].disabled = true;
	}
}

function UnLockForm(oForm)
{
	var form = document.getElementById(oForm);
	
	for(i=0; i<form.elements.length; i++)
	{
		form.elements[i].disabled = false;
	}
}


function EmailFriend(propref, event)
{
	var error = ValidateForm('emailafriend');
	
	if(error == "")
	{
		LockForm('emailafriend');
		var array = CollectInfo('emailafriend');		
		var url= "/includes/emailafriend.php?email=true&propref=" + propref;
			
		for(i=0; i<array.length; i++)
		{
			url = url + "&" + array[i];
		}
		
		xmlHttp=GetXmlHttpObject()
		
		if (xmlHttp==null)
		{
			alert ("Browser does not support HTTP Request")
			return
		}
			
		xmlHttp.open("GET",url,false);
		xmlHttp.send(null);
		
		if(xmlHttp.responseText == "true")
		{
			customToolTip(event, "Thank you, your email has been sent")
		}
		else
		{
			UnLockForm('emailafriend');
		}
	}
	else
	{
		alert("The following errors occured:\n\n" + error);
	}
}


function Unsubscribe(uns)
{
	var error = ValidateForm(uns);
	
	if(error == "")
	{
		LockForm(uns);
		var array = CollectInfo(uns);		
		var url= "/includes/request.php?form=" + uns;
			
		for(i=0; i<array.length; i++)
		{
			url = url + "&" + array[i];
		}
		
		xmlHttp=GetXmlHttpObject()
		
		if (xmlHttp==null)
		{
			alert ("Browser does not support HTTP Request")
			return
		}
			
		xmlHttp.open("GET",url,false);
		xmlHttp.send(null);
		
		if(xmlHttp.responseText == "true")
		{
			alert("Thank you, you will be removed from our email list.");
		}
		else
		{
			UnLockForm(uns);
		}
	}
	else
	{
		alert("The following errors occured:\n\n" + error);
	}
}

function ContactUs(formname)
{
	var error = ValidateForm(formname);
	
	if(error == "")
	{
		LockForm(formname);
		
		var array = CollectInfo(formname);		
		var url= "/includes/request.php?form=" + formname;
			
		for(i=0; i<array.length; i++)
		{
			url = url + "&" + array[i];
		}
		
		xmlHttp=GetXmlHttpObject()
		
		if (xmlHttp==null)
		{
			alert ("Browser does not support HTTP Request")
			return
		}
			
		xmlHttp.open("GET",url,false);
		xmlHttp.send(null);
		
		//UnLockForm(formname);
		
		try
		{
			if(document.getElementById("brochure").checked)
			{
				//
				// Google tracking
				urchinTracker('/request/brochure');
				//alert("testing");
			}
		}
		catch(e)
		{
		
		}
		//alert(xmlHttp.responseText);
		if(xmlHttp.responseText == "true")
		{
			//alert("Thank you, you email has been sent.");
			
			UnLockForm(formname);
			window.location = ROOTURL + "information/thanks.html";
		}
		else
		{
			UnLockForm(formname);
			alert("Sorry, there was a problem sending your message, please call us on +44 1603 871872 and we will be happy to help.");
		}
	}
	else
	{
		alert("The following errors occured:\n\n" + error);
	}
}

function PropImageRight()
{
	var imagevalue = document.getElementById("propertyimages").value;
	var imagearray = imagevalue.split(",");
	
	if(imagepointer < (imagearray.length-1))
	{
		imagepointer++;
	}
	else
	{
		imagepointer = 0;
	}
	
	document.getElementById("mainimagepic").src = "http://www.aldeburghlettings.co.uk/images/properties/300/" + imagearray[imagepointer];
}

function PropImageLeft()
{
	var imagearray = document.getElementById("propertyimages").value;
	imagearray = imagearray.split(",");
	
	if(imagepointer >= 1)
	{
		imagepointer--;
	}
	else
	{
		imagepointer = (imagearray.length-1);
	}
	
	document.getElementById("mainimagepic").src = "http://www.aldeburghlettings.co.uk/images/properties/300/" + imagearray[imagepointer];
}

function SetPointer(value)
{
	imagepointer = value;
}