< html >
< head >
< meta charset= "utf-8" >
< script >
function showHint (str)
{
var xmlhttp;
if (str.length==0)
{
document.getElementById("txtHint").innerHTML="";
return;
}
if (window.XMLHttpRequest)
{
// IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{
// IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function ()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
}
}
xmlhttp.open ("GET", "/ try/ajax/gethint.php?q=" + str,true);
xmlhttp.send ();
}
< / script >
< / head >
< body >
in the input box, try entering the letters a:
< form action= "" >
enter the name: < input type= "text" id= "txt1" onkeyup= "showHint (this.value)" / >
< / form >
prompt: < span id= "txtHint" >
< / body >
< / html >