The AJAXJS used in Pjblog. Several simple functions _ajax related

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) {//Set 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
}
Xmlhttp.onreadystatechange=requestdata;
Xmlhttp.open ("Get", url,true);
Xmlhttp.send (NULL);
function RequestData ()
{

fopen (OBJ1);
Echo (obj1, "Loading data, please wait ...");
if (xmlhttp.readystate==4)
{
if (xmlhttp.status==200)
{
if (obj1!=obj2) {fclose (obj1);};
Echo (Obj2,xmlhttp.responsetext);

}
}

}
}