function ajaxFunction(page){  
	if (1){
		xmlHttp=GetXmlHttpObject()
		if (xmlHttp==null)
		  {
		  alert ("Your browser does not support AJAX!");
		  return;
		  }
		url = "script/ajax_showmessage.php?page="+page;	
		
		xmlHttp.onreadystatechange=function()
		  {
		  if(xmlHttp.readyState==4)
			{
			document.getElementById('showmessage').innerHTML=xmlHttp.responseText;
			}
		  }

		xmlHttp.open("POST",url,true);
		xmlHttp.send(null);	
	}
}