var capa="capaMsg";function objAjax(){var a=false;try{a=new ActiveXObject("Msxml2.XMLHTTP")}catch(c){try{a=new ActiveXObject("Microsoft.XMLHTTP")}catch(b){a=false}}if(!a&&typeof XMLHttpRequest!="undefined"){a=new XMLHttpRequest()}return a}function postAjaxNoCache(a,c,b){if(!c){c=""}if(c!=""){c+="&"}c+="nocache="+(new Date).getTime();postAjax(a,c,b)}function postAjax(url,param,func){if(!param){param=""}var ajax=objAjax();if(!func){func=function(ajax){if(ajax.readyState==4){eval(ajax.responseText)}}}var func2=function(){func(ajax)};ajax.open("POST",url);ajax.setRequestHeader("Content-type","application/x-www-form-urlencoded");ajax.setRequestHeader("Content-length",param.length);ajax.setRequestHeader("Connection","close");ajax.onreadystatechange=func2;ajax.send(param)}function cleanMsg(a){document.getElementById(a).innerHTML=""};