// JavaScript Document
function validateemail()
{
		var email=document.getElementById('email').value;
		var query = "?email=" + email;
		
		var ajaxRequest; // The variable that makes Ajax possible!
		try
		{
			ajaxRequest = new XMLHttpRequest();
		} 
		catch (e)
		{
			try
			{
				ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
			} 
			catch (e) 
			{
				try
				{
					ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
				} 
				catch (e)
				{
					// Something went wrong
					alert("Your browser broke!");
					return false;
				}
			}
		}
		// Function to receive data sent from the server and update div's
		ajaxRequest.onreadystatechange = function()
		{
			if(ajaxRequest.readyState == 4)
			{
				var ajaxDisplay = document.getElementById('resulta');		
				if(ajaxRequest.responseText == "false" && email!='')
				{
					ajaxDisplay.innerHTML = 'not in used';	
				}
				else if(email == '')
				{
					ajaxDisplay.innerHTML = 'this must be unique';
				}
				else
				{
					ajaxDisplay.innerHTML = 'Already in Used';
				}
				
			}
		}
	ajaxRequest.open("GET", "validateemail.php" + query, true);
	ajaxRequest.send(null); 
}