Ajax Implementation Page Load wait

Create a XMLHttpRequest Object
function Createxmlhttprequest () {
if (window. XMLHttpRequest) {//mozilla
Xmlhttpreq=new XMLHttpRequest ();
}
else if (window. ActiveXObject) {
try{
Xmlhttpreq=new ActiveXObject ("msxml2.xmlhttp");
}catch (e) {
try{
Xmlhttpreq=new ActiveXObject ("Microsoft.XMLHTTP");
}catch (e) {}
}
}
}
Send Request function
function Send (URL) {
Appenddiv ("loading.....!");
Createxmlhttprequest ();
Xmlhttpreq.open ("Get", url,true);
Xmlhttpreq.onreadystatechange=proce; function that specifies the response
Xmlhttpreq.send (NULL); Send Request
}
function Proce () {
if (xmlhttpreq.readystate==4) {//object state
if (xmlhttpreq.status==200) {//information has been successfully returned to start processing information
var Xmldoc=xmlhttpreq.responsetext;
document.write (xmldoc);
}else{
}}}
Add div display loading words
function Appenddiv (message) {
var div = document.createelement ("div");
div.align= "center";
Div.style.fontsize= "24px";
Div.style.margin= "15%";
var Messagenode = document.createtextnode (message);
Div.appendchild (Messagenode);
Document.body.innerhtml= "";
Document.body.appendChild (div);}
Onload=send;