You want your Klip to respond to drag & drop events.
To add drag & drop support to your Klip, first set a drop handler function in your onLoad() handler:
Klip.onDrop = myDrop;
Here's an example drop handler function from the Bookmarks Klip:
function myDrop(url) { if((url.indexOf("http://") != -1) || (url.indexOf("https://") != -1)) { gBookmark.value = url; Klip.requestRefresh(); } }