js draggable
<script> var dragged; /* events fired on the draggable target */ document.addEventListener("drag", function(event) { }, false); document.addEventListener("dragstart", function(event) { // store a ref. on the dragged elem dragged = event.target; // make it half transparent event.target.style.opacity = .5; }, false); document.addEventListener("dragend", function(event) { // reset the transparency event.target.style.opacity = ""; }, false); /* events fired on the drop targets */ document.addEventListener("dragover", function(event) { // prevent default to allow drop event.preventDefault(); }, false); document.addEventListener("dragenter", function(event) { // highlight potential drop target when the draggable element enters it if (event.target.className == "dropzone") { event.target.style.background = "purple"; } }, false); document.addEventListener("dragleave", function(event) { // reset background of potential drop target when the draggable element leaves it if (event.target.className == "dropzone") { event.target.style.background = ""; } }, false); document.addEventListener("drop", function(event) { // prevent default action (open as link for some elements) event.preventDefault(); // move dragged elem to the selected drop target if (event.target.className == "dropzone") { event.target.style.background = ""; dragged.parentNode.removeChild( dragged ); event.target.appendChild( dragged ); } }, false); </script>