function DragTagOperator(){
	var position = {};
	var dispatcher = null;
	var args = {'root':'header'};
	var events = {
		'drag-register':(data) => {this.register(data)}
		,'drag-unregister':(data) => {this.unregister(data)}
	};
	this.decorate = function(opts){
		for (var key in opts){
			if(args.hasOwnProperty(key)){
				args[key] = opts[key];
			}
		}
		return this;
	}
	this.create = function(){
		dispatcher = new V13wEv3ntD1spatch3r({'events':Object.keys(events),'issues':Object.values(events)}).onRegister();
		return this;
	}
	this.register = function(data){
		if(!args.hasOwnProperty(data.tag)){
			var element = $(data.tag);
			element.on('mousedown',click);
			position[element.attr('id')] = [element.css('left'),element.css('top'),0,0];
		}
		return this;
	}
	this.unregister = function(data){
		if(args.hasOwnProperty(data.tag)){
			var element = $(data.tag);
			header.off('mousedown');
			delete position[data.tag];
		}
		return this;
	}

  	function click(evt) {
  		var element = $(evt.target).parent()
  		pos = position[element.attr('id')]
	    evt = evt || window.event;
	    pos[2] = evt.clientX;
	    pos[3] = evt.clientY;
	    var header = $(args.root)
	    header.on('mousemove',function(evt){move(evt,element,pos);})
	    header.on('mouseup',close)
  	}
  	function move(evt,element,pos){
	    evt = evt || window.event;
	    pos[0] = pos[2] - evt.clientX;
	    pos[1] = pos[3] - evt.clientY;
	    pos[2] = evt.clientX;
	    pos[3] = evt.clientY;
	    var vx = element.css('top').replace('px','')-pos[1]
	    var vy = element.css('left').replace('px','')-pos[0]
	    element.css({'top':vx+"px",'left':vy+"px"});
  	}
  	function close(evt) {
  		var header = $(args.root);
  		header.off('mousemove');
  		header.off('mouseup');
	}
}