Not sure if the problem is related to Ajax or something silly about JavaScript that I'm overlooking in general, but I have the following script where fox.html is just plain text that reads, "The quick brown fox jumped over the lazy dog." :
function loadXMLDoc()
{
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.open("GET","fox.html",true);
xmlhttp.send();
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
fox = xmlhttp.responseText;
alert(fox);
}
}
}
onload = loadXMLDoc;
The above script alerts the contents of fox.html onload just fine. However if I change the script so that:
{
fox = xmlhttp.responseText;
alert(fox);
}
becomes:
{
fox = xmlhttp.responseText;
return fox;
}
and alert(loadXMLDoc()); onload I get 'undefined'.
I'm wondering why this is so.
