// JavaScript Document

var xhr = false;

function chat( ){
	
	if(document.getElementById('post').value.length==0){
		alert("Please enter a message!");
		document.getElementById('post').focus();
	}else{
	
	if (window.XMLHttpRequest) {
		xhr = new XMLHttpRequest();
	}
	else {
		if (window.ActiveXObject) {
			try {
				xhr = new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (e) { }
		}
	}

	if (xhr) {
	
		xhr.open('POST', 'sendchat.php');
	
		xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	
		var name = document.getElementById('name').value;
	
		var post = document.getElementById('post').value;
	
		xhr.send('name=' + name + '&post=' + post);
		
	}	else {
		alert("Sorry, but I couldn't create an XMLHttpRequest");
	}
	
	}
   
		document.getElementById('post').value = '';
}