mxXmlRequest.prototype.simulate=function(a,b){a=a||document;var c=null;a==document&&(c=window.onbeforeunload,window.onbeforeunload=null);var d=a.createElement("form");d.setAttribute("method",this.method);d.setAttribute("action",this.url);null!=b&&d.setAttribute("target",b);d.style.display="none";d.style.visibility="hidden";b=0<this.params.indexOf("&")?this.params.split("&"):this.params.split();for(var e=0;e<b.length;e++){var f=b[e].indexOf("=");if(0<f){var g=b[e].substring(0,f);f=b[e].substring(f+