var http_request=false;function makePOSTRequest(url,parameters){http_request=false;if(window.XMLHttpRequest){http_request=new XMLHttpRequest();if(http_request.overrideMimeType){http_request.overrideMimeType('text/html');}}else if(window.ActiveXObject){try{http_request=new ActiveXObject("Msxml2.XMLHTTP");}catch(e){try{http_request=new ActiveXObject("Microsoft.XMLHTTP");}catch(e){}}}if(!http_request){alert('Cannot create XMLHTTP instance');return false;}http_request.onreadystatechange=alertContents;http_request.open('POST',url,true);http_request.setRequestHeader("Content-type","application/x-www-form-urlencoded");http_request.setRequestHeader("Content-length",parameters.length);http_request.setRequestHeader("Connection","close");http_request.send(parameters);}function alertContents(){if(http_request.readyState==4){if(http_request.status==200){off('sb');loading("resultd");result=http_request.responseText;document.getElementById('resultd').innerHTML=result;on('sb');}}}function loading(ob){document.getElementById(ob).innerHTML=' در حال ارسال...';}function get(obj){a=document.getElementById('a').value;e_m=document.getElementById('e_m').value;scode_news=document.getElementById('scode_news').value;var poststr="a="+a+"&e_m="+e_m+"&scode_news="+scode_news;makePOSTRequest('/newsletter/register.php?a='+a+'',poststr);}function off(itm){obj1=document.getElementById(itm);obj1.disabled=true;}function on(itm){obj2=document.getElementById(itm);obj2.disabled=false;}