function Ajax(page) {
	var xmlHttp=null;
	try 
	{
		xmlHttp = new XMLHttpRequest(); // xmlHttp is now a XMLHttpRequest.
	} 
	catch (e) 
	{
		// Internet Explorer
		try 
		{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		} 
		catch (e) 
		{
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
 	xmlHttp.onreadystatechange = function() 
 	{
		if (xmlHttp.readyState == 1 )
		{
			//if( xmlHttp.status == 404)
			{
				document.getElementById("mydiv").innerHTML = '<img border="0" src="images/loading.gif" width="16" height="16" align="center">';
			}
		} 
    	if (xmlHttp.readyState == 4 )
		{
			if( xmlHttp.status == 404)
			{
				document.getElementById("mydiv").innerHTML = "error";
			}
			if ( xmlHttp.status == 200) 
			{
				document.getElementById("mydiv").innerHTML = xmlHttp.responseText;
			}
		}
	}
	 x='progress/request.php?start='+document.F1.start.value+'&end='+document.F1.end.value+'&room='+document.F1.room.value+'&adults='+document.F1.adults.value+'&kids='+document.F1.kids.value;
	 xmlHttp.open('get',x); 
	 xmlHttp.send(null);
}