function ajax(page, form_name, div_id)
{
		var xmlhttp;
		
		if (window.XMLHttpRequest) 
		{
				try
				{
					xmlHttp = new XMLHttpRequest() 
				}
				catch(e) 
				{}
		}
		else if (window.ActiveXObject) 
		{
				try
				{
					xmlHttp = new ActiveXObject("Microsoft.XMLHTTP") 
				}
				catch(e) {}
				if (!xmlHttp) 
					try
					{
						xmlHttp = new ActiveXObject("Msxml2.XMLHTTP") 
					}
					catch (e) {}
		}
		
		if(!xmlHttp)return;
		xmlHttp.open("POST",page,true);
		xmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		xmlHttp.send(null);
		xmlHttp.onreadystatechange = function() 
		{
			if (xmlHttp.readyState == 4)
			{
				document.getElementById(div_id).innerHTML = xmlHttp.responseText;
			}
		}			
}