[Original] ajax implementation of user registration function tutorial 2 _ PHP Tutorial

[Original] Tutorial 2 on implementing the user registration function using ajax. [Original] ajax implementation of user registration function tutorial 2, this tutorial by the site original, reproduced please indicate the author: www.drise.cn mailbox: drise@163.comQQ: 271728967 above the first reg. php [original] ajax implementation user registration function tutorial 2 ','

//

This tutorial is original on this site.

Author: www.drise.cn

Email: drise@163.com

QQ: 271728967

//

The first reg. php file above has been completed, so I will do the second step.

Var xmlHttp = false;
Function ajaxcreate () {// Here is the creation of the xmlhttpt object

Try {
XmlHttp = new ActiveXObject ("Msxml2.XMLHTTP ");
} Catch (e ){

Try {
XmlHttp = new ActiveXObject ("Microsoft. XMLHTTP ");
} Catch (e2 ){

XmlHttp = false;
}

}

If (! XmlHttp & typeof XMLHttpRequest! =\\ 'Undefined \\\'){

XmlHttp = new XMLHttpRequest ();

}

If (! XmlHttp) {alert (\ 'create Xmlhttp Fail \ '); return false ;}

}

Function ajax () {// The operation to be performed after the reg. php onblur () event is received,

Ajaxcreate ();

Var xmvalue = document. getElementById ("xm"). value;

Var url = "/boke/blog/type. php? Txt = "+ encodeURI (xmvalue );

If (xmvalue = null | xmvalue. length> 20 | xmvalue = "") return false;

XmlHttp. open ("POST", url, true );

XmlHttp. setRequestHeader ("Content-Type", "application/x-www-form-urlencoded ");

XmlHttp. send (xmvalue );

XmlHttp. onreadystatechange = returnstate;

}

Function returnstate (){

If (xmlHttp. readyState! = 4 ){

Document. getElementById ("pxm"). innerHTML ="

Verifying. please wait...

";

}

If (xmlHttp. readyState = 4 ){

Document. getElementById ("pxm"). innerHTML = xmlHttp. responseText;

}

}

Login to achieve user registration function tutorial 2 ',' // This tutorial by the site original, reproduced please indicate to the author: www.drise.cn mailbox: drise@163.com QQ: 271728967 // above the first reg. php...