function createRequestObject()
{
/* Initialising the variable xmlhttp */
var xmlhttp=false;

/* Try and catch block for creating xmlhttp object according to the browser */
try
{
/* The xmlhttp object is built into the Microsoft XML Parser. */
xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
}
catch (e)
{
try
{
/* The xmlhttp object is built into the Microsoft IE. */
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
catch (E)
{
xmlhttp = false;
}
}
/* The xmlhttp object is built into the browsers other than Microsoft IE. */
if (!xmlhttp && typeof XMLHttpRequest!='undefined')
{
xmlhttp = new XMLHttpRequest();
}
return xmlhttp;
}