Category Archives: Usability

Drag and drop from scratch using JavaScript

An example code to implement drag-ability in to an HTML element from scratch without using JavaScript library. JavaScript functions to provide drag-ability: function DDElement(ele, event) { addEvent(ele, “mousedown”, downHandler, true); addEvent(document, “mouseup”, upHandler, true); if (event.stopPropagation) event.stopPropagation(); else event.cancelBubble = true; if (event.preventDefault) event.preventDefault(); else event.returnValue = false; function upHandler(e) { e = e ||…

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