When a user selects a course in the dropdown list above, a function called
Course information will be listed here.
showCourse as below is executed.
The showCourse function does the following:
XMLHttpRequest object.
q) with the content of the dropdown list is added to the URL.
function showCourse( str ) {
if ( str == "" ) {
document.getElementById("txtHint").innerHTML = "";
return;
}
if ( window.XMLHttpRequest ) {
// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest( );
}
else {
// code for 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", "GetCourse.php?q="+str, true );
xmlhttp.send( );
}
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Friends of an old guy hire a lady of the evening for his 90th birthday. She arrives at his door, throws open her coat, and shouts, “I’m here to give you super sex!” The old man thinks a second and says, “I’ll take the soup.” — Jane Lynch |