Function doRegister() { var f = document.getElementById("frm.register"); if(!f.NEWLOGIN.value

Question

Function doRegister() { var f = document.getElementById("frm.register"); if(!f.NEWLOGIN.value

|| !f.NEW_PWD.value || (f.NEW_PWD.value!=f.PWD_REPEAT.value) ||
(f.EMAIL.value != f.EMAIL_REPEAT.value) || !f.CAPCHA.value || (f.CAPCHA.value.length!=5) ) {
alert("?? ??? ???????????? ???? ????????? ?????????");
f.NEWLOGIN.focus();
return;
}
lockScreen();
ajax.onRequest = function (status,content) {
if(status==200) {
lockScreen();
var m = content.match(/<result😠.+)<\/result>/);
if(m) {
content = content.replace(/<result>.+<\/result>/,"");
if(m[1]==0) {
m = content.match(/<script😠.*?)<\/script>/);
if(m) eval(m[1]);
document.getElementById("div.inner").innerHTML = content;
}
else {
var msg = "????????? ????????? ??????, ?????????? ???? ?????";
if(m[1]==-2) {
msg ="??????? ??????? ???????? CAPCHA";
var f = document.getElementById("frm.register");
f.CAPCHA.value = "";
f.CAPCHA.focus();
}
errorMessage(msg);
}
}
}
};
var formdata = "";
for(i=0;i<f.elements.length;i++)
formdata+=(f.elements[i].name+"="+f.elements[i].value+"&");
ajax.doPOST("/",formdata+"m=register&step=3");
}