function send(action,obj){
var req; 
	 
	if (window.XMLHttpRequest)      // normal browser 
	req = new XMLHttpRequest();  
	else if (window.ActiveXObject)      //IE 
	{ 
	    try { 
	        req = new ActiveXObject('Msxml2.XMLHTTP'); 
	    } catch (e){} 
	    try { 
	    req = new ActiveXObject('Microsoft.XMLHTTP'); 
	    } catch (e){} 
	} 
	 
	if (req)  
	{ 
	    req.onreadystatechange = function()  
	    { 
	        if (req.readyState == 4 && req.status == 200)  { 
	        
	        document.getElementById(action).innerHTML=req.responseText;
	        
	         }         
	    };   
	    req.open("POST", 'ajaxtest.php', true); 
	    req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); 
	     value=obj.value;
        
         req.send('act=' + action + '&value=' + value);
        
	}  
}