function common_ajax(pfile,w,h){
			
                var loginajax;
                try
                {
                    // Firefox, Opera, and the like
                    loginajax = new XMLHttpRequest();
                }
                catch (e)
                {
                    //Internet Exploder?
                    try
                    {
                        loginajax= new ActiveXObject("Msxm12.XMLHTTP");
                    }
                    catch (e)
                    {
                        //...
                        try
                        {
                            loginajax = new ActiveXObject("Microsoft.XMLHTTP");
                        }
                        catch (e)
                        {
                            alert("Your browser does not support Ajax, because of this you would not be able to login.");
							//tobj=document.getElementById("pforward");
							//tobj.style.display="none";
                        }
                    }
                }
				
				var d = new Date();
				timestamp=d.toUTCString();
                loginajax.open('POST', 'common_box.php', 'true');
                loginajax.setRequestHeader("Content-type", "application/x-www-form-urlencoded;text/html;charset=utf-8");
				loginajax.setRequestHeader('If-Modified-Since', 'Wed, 15 Feb 2008 00:00:00 GMT');
                //loginajax.setRequestHeader("Content-length", myname.length);
                //loginajax.setRequestHeader("Connection", "close");
				
				poststr="phpfile=" + escape(pfile) + "&w=" + w + "&h=" + h;				
				loginajax.send(poststr);
				
                loginajax.onreadystatechange=function()
                {
                    if(loginajax.readyState == 4)
                    {						
						common_obj=document.getElementById('common_div');
						common_obj.innerHTML=loginajax.responseText;
						setTimeout("showPopUp('common_box');", 1000);
                    }
                }
}