Javascript

Use the following code: window.showModalDialog('index.php','Dialogue','dialogHeight: 700px; dialogWidth: 950px; edge: Sunken; center: Yes; help: No; resizable: No; status: Yes;');

Put the following code(onunload or onbeforeunload): window.onunload = function () {    setTimeout("document.getElementById('waiting-overlay').innerHTML=''", 10);}

Use the following code: document.documentElement.style.overflow = 'hidden'; // firefox, chromedocument.body.scroll = "no"; // ie only

Put the following code: <a href="javascript:scroll(0,0);">Top</a>