DnD.SimpleDraggable=Class.create();Object.extend(DnD.SimpleDraggable.prototype,DnD.Draggable.prototype);Object.extend(DnD.SimpleDraggable.prototype,{initialize:function(id,options){this.id=$(id);if(!this.id){alert("drag: Element with ["+id+"] ID was not found in the DOM tree. Probably element has no client ID or client ID hasn't been written. DnD's disabled. Check please!");return;}
this.options=options;this.dragIndicatorId=this.options.dragIndicator;this.eventMouseDown=this.initDrag.bindAsEventListener(this);Event.observe(this.id,"mousedown",this.eventMouseDown);},getDnDDragParams:function(){if(this.options.dndParams){return this.options.dndParams.parseJSON();}
return null;},getIndicator:function(){var dragIndicator=$(this.dragIndicatorId);if(!dragIndicator){dragIndicator=this.getOrCreateDefaultIndicator();}
return dragIndicator;},ondragstart:function(event,drag){drag.params=this.options.parameters;drag.params[this.id]=this.id;this.setIndicator(event);},getContentType:function(){return this.options.dragType;},initDrag:function(event){if(Event.isLeftClick(event)){var src=Event.element(event);if(src.tagName&&(src.tagName=='INPUT'||src.tagName=='SELECT'||src.tagName=='OPTION'||src.tagName=='BUTTON'||src.tagName=='TEXTAREA'))return;Event.stop(event);this.startDrag(event);}}});