1 files changed, 56 insertions, 0 deletions
diff --git a/comiccontrol/includes/dragndrop.js b/comiccontrol/includes/dragndrop.js
new file mode 100644
index 0000000..90cb38d
--- /dev/null
+++ b/comiccontrol/includes/dragndrop.js
@@ -0,0 +1,56 @@
+//drag and drop script
+
+document.onmousemove = mouseMove;
+document.onmouseup   = mouseUp;
+
+var dragObject  = null;
+var mouseOffset = null;
+
+function getMouseOffset(target, ev){
+	ev = ev || window.event;
+
+	var docPos    = getPosition(target);
+	var mousePos  = mouseCoords(ev);
+	return {x:mousePos.x - docPos.x, y:mousePos.y - docPos.y};
+}
+
+function getPosition(e){
+	var left = 0;
+	var top  = 0;
+
+	while (e.offsetParent){
+		left += e.offsetLeft;
+		top  += e.offsetTop;
+		e     = e.offsetParent;
+	}
+
+	left += e.offsetLeft;
+	top  += e.offsetTop;
+
+	return {x:left, y:top};
+}
+
+function mouseMove(ev){
+	ev           = ev || window.event;
+	var mousePos = mouseCoords(ev);
+
+	if(dragObject){
+		dragObject.style.position = 'absolute';
+		dragObject.style.top      = mousePos.y - mouseOffset.y;
+		dragObject.style.left     = mousePos.x - mouseOffset.x;
+
+		return false;
+	}
+}
+function mouseUp(){
+	dragObject = null;
+}
+
+function makeDraggable(item){
+	if(!item) return;
+	item.onmousedown = function(ev){
+		dragObject  = this;
+		mouseOffset = getMouseOffset(this, ev);
+		return false;
+	}
+}