get xy coordinates on html5 drop event

with html5 drag and drop, how do i get the x and y position of where the item was dropped on the drop event? i need to dynamically create and display an image and a popup at that point...not using the canv开发者_StackOverflow社区as

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Use the standard clientX and clientY properties:

function onDrop(ev) {
    window.alert( ev.clientX + ',' + ev.clientY);
    ev.stopPropagation();
    return false;
}