ajax: get variable from other page & put them into current page

Hey.
i hav two page. suppose page.php & page_ajax.php
in page.php there are some <input /> form field. & in page_ajax.php there are some JS variable declared (<script....>var xtitle = 'blah blkah'</script>)
i want page.php to get those variable from page_ajax.php & put them into those input form's value

i tried this...no luck

var xmlHttp

function getInfo()
{
	xmlHttp=GetXmlHttpObject();
		if (xmlHttp==null)
  		{
			alert ("Your browser does not support AJAX!");
			return;
  		}
	document.getElementById("getInfoButton").disabled = true;
	document.getElementById("getInfoButton").value = 'Loading...';

	var url="./vbv/page_ajax.php";
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
} 

function stateChanged() 
{ 
	if (xmlHttp.readyState==4)
	{ 
		document.getElementById("title").value = xtitle;
		document.getElementById("tags").value = xtags;
		document.getElementById("desc").value = xdesc;
		document.getElementById("getInfoButton").disabled = false;
	}

}



function GetXmlHttpObject()
{
	var xmlHttp=null;
	try
	{
		xmlHttp=new XMLHttpRequest();
	}
	catch (e)
	{
	try
		{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e)
		{
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}

	return xmlHttp;
}

Code (markup):

xtitle, xtags, xdesc are the variables already declared in page_ajax.php

i tried to grab info by clicking a button (id=getInfoButton & onclick=getInfo() )

 

You simply need to make page_ajax.php ouput the values of those variables: e.g (page_ajax.php):

<script>
    document.write(xtitle + "," + xtags + "," + xdesc);
</script>

Code (markup):

page.php:

                          var rText = xmlHttp.responseText.split(","); //splits the response by comma(,) and stores each result in an array
		document.getElementById("title").value = rText[0];    //retrieves first result
		document.getElementById("tags").value = rText[1];   //second
		document.getElementById("desc").value = rText[2];  //third

Code (markup):

If this is not sufficient then you can output xml (from page-ajax.php) and then read the xml(from page.php)... whatever suits your needs.

 

tnx mate
...just like i want