Submit comments using Ajax

Copy codeThe Code is as follows:

Document. write ('<DIV id = "loadingg" style = "HEIGHT: 65px; WIDTH: 205px; POSITION: absolute; Z-INDEX: 1000; border: 3px # fff solid; text-align: center; font-size: 12px; font-family: Arial, Helvetica, sans-serif; color: #660000; background: #222; opacity :. 7;-moz-opacity :. 7; filter: alpha (opacity = 70); display: none; "> <br/> <font color =" # FF6600 "> <strong> the data is being read, please wait... </strong> </font> <br/> </DIV> ')
Function showloading ()
{
Var obj = document. getElementById ("loadingg ")
If (obj. style. display! = "")
{
Obj.style.left.pdf (document.doc umentElement. clientWidth-parseFloat (obj. style. width)/2)+document.doc umentElement. scrollLeft + "px ";
Obj.style.topight (document.doc umentElement. clientHeight-parseFloat (obj. style. height)/2)+document.doc umentElement. scrollTop + "px ";
Obj. style. display = "";
} Else {obj. style. display = "none ";}
}
Function $ (id)
{Return document. getElementById (id );}
Function echo (obj, html) {$ (obj). innerHTML = html ;}
Function fopen (obj) {$ (obj). style. display = "";}
Function fclose (obj) {$ (obj). style. display = "none ";}
Function createxmlhttp (){
Var xmlhttp = false;
Try {
Xmlhttp = new ActiveXObject ("Msxml2.XMLHTTP ");
}
Catch (e ){
Try {
Xmlhttp = new ActiveXObject ("Microsoft. XMLHTTP ");
}
Catch (e ){
Xmlhttp = false;
}
}
If (! Xmlhttp & typeof XMLHttpRequest! = 'Undefined '){
Xmlhttp = new XMLHttpRequest ();
If (xmlhttp. overrideMimeType) {// sets the MiME category
Xmlhttp. overrideMimeType ('text/xml ');
}
}
Return xmlhttp;
}

Function getdata (url, obj1, obj2)
{Var xmlhttp = createxmlhttp ();
If (! Xmlhttp)
{Alert ("your browser does not support XMLHTTP !! ");
Return;
}
Showloading ()
Xmlhttp. onreadystatechange = requestdata;
Xmlhttp. open ("GET", url, true );
Xmlhttp. send (null );
Function requestdata ()
{Fopen (obj1 );
// Echo (obj1, "loading data. Please wait ......");
// Alert (xmlhttp. readyState)
If (xmlhttp. readyState = 4)
{If (xmlhttp. status = 200)
{If (obj1! = Obj2) {fclose (obj1 );};
Echo (obj2, xmlhttp. responseText );
Showloading ()
}
}
}
}
Function postdata (url, obj, data)
{Var rnd = Math. random ()
Var xmlhttp = createxmlhttp ();
If (! Xmlhttp)
{
Alert ("your browser does not support XMLHTTP !! ");
Return;
}
Showloading ()
Xmlhttp. open ("POST", url, true );
Xmlhttp. onreadystatechange = requestdata;
Xmlhttp. setRequestHeader ("Content-Type", "application/x-www-form-urlencoded ");
Xmlhttp. send (data );
Function requestdata ()
{Fopen (obj );
Echo (obj, "submitting data. Please wait ......");
If (xmlhttp. readyState = 4)
{If (xmlhttp. status = 200)
{
Echo (obj, xmlhttp. responseText );
Reget (rnd );
SetTimeout ("echo ('showresult','') ", 2000 );
Echo ('message ','')
Showloading ()
}
}
}
}
Function lTrim (str)
{
If (str. charAt (0) = "")
{
// If the first character on the left of the string is a space
Str = str. slice (1); // remove spaces from the string
// This sentence can also be changed to str = str. substring (1, str. length );
Str = lTrim (str); // recursive call
}
Return str;
}

// Remove the spaces on the right of the string
Function rTrim (str)
{
Var iLength;

ILength = str. length;
If (str. charAt (iLength-1) = "")
{
// If the first character on the right of the string is a space
Str = str. slice (0, iLength-1); // remove spaces from the string
// This sentence can also be changed to str = str. substring (0, iLength-1 );
Str = rTrim (str); // recursive call
}
Return str;
}

// Remove the spaces on both sides of the string
Function trim (str)
{
Return lTrim (rTrim (str ));
}

Function f (obj)
{
Return trim (eval ("document. ajax_post." + obj + ". value "));
// Return trim ($ (obj). value );
}

Function SaveReply ()
{If (f ("username") = "")
{Alert ("Enter the user name ");
Return false;
}
If (f ("Message") = "")
{Alert ("content cannot be blank ");
Return false;
}
Var validate, password, log_DisKey = 0, log_DisURL = 0, log_DisSM = 0
Validate = ""
Password = ""
If (document. ajax_post.log_DisKey.checked ){
Log_DisKey = f ("log_DisKey ")
}
If (document. ajax_post.log_DisURL.checked ){
Log_DisURL = f ("log_DisURL ")
}
If (document. ajax_post.log_DisSM.checked ){
Log_DisSM = f ("log_DisSM ")
}
If (typeof eval (document. ajax_post.validate ))! = "Undefined "){
If (f ("validate") = "")
{Alert ("Please enter the Verification Code ");
Return false;
} Else {
Validate = f ("validate ");
}
}
If (typeof eval (document. ajax_post.password ))! = "Undefined "){
Password = f ("password ");
}
Data = "username =" + escape (f ("username") + "& password =" + escape (password) + "& validate =" + escape (validate) + "& log_DisSM =" + escape (log_DisSM) + "& log_DisURL =" + escape (log_DisURL) + "& log_DisKey =" + escape (log_DisKey) + "& Message =" + escape (f ("Message") + "& logID =" + escape (f ("logID ")) + "& action =" + escape (f ("action "));
// Alert (data );
Postdata ("wbc_blogcomm.asp", "showresult", data );
Return true;
}