function init(){
	my_doc = fl.getDocumentDOM();
	my_lib = my_doc.library;
	my_lib.addNewItem("movie clip", "ship");
	my_lib.editItem("ship");
	my_doc.addNewLine({x:10, y:0}, {x:-10, y:-10});
	my_doc.addNewLine({x:-10, y:-10}, {x:-5, y:0});
	my_doc.addNewLine({x:-5, y:0}, {x:-10, y:10});
	my_doc.addNewLine({x:-10, y:10}, {x:10, y:0});
	my_doc.exitEditMode();
	my_lib.addItemToDocument({x:my_doc.width/2, y:my_doc.height/2}, "ship");
	my_doc.selection[0].name = "ship";
	my_doc.selectNone();
}
function moveShip(x, y){
	var my_doc = fl.getDocumentDOM();
	var my_tl = my_doc.getTimeline();
	var currFrame = my_tl.currentFrame;
	var currLayer = my_tl.currentLayer;
	var my_frame = my_tl.layers[currLayer].frames[currFrame];
	var my_elems = my_frame.elements;
	for(var i=0;i<my_elems.length;i++){
		if(my_elems[i].name == "ship"){
			ship_elem = my_elems[i];
		}
	}
	my_doc.selectNone();
	my_doc.selection = [ship_elem];
	my_doc.moveSelectionBy({x:x, y:y});
	if(ship_elem.left > my_doc.width){
		my_doc.moveSelectionBy({x:-my_doc.width, y:0});
	} else 	if(ship_elem.left < 0){
		my_doc.moveSelectionBy({x:my_doc.width, y:0});
	}
	if(ship_elem.top > my_doc.height){
		my_doc.moveSelectionBy({y:-my_doc.height, x:0});
	} else 	if(ship_elem.top < 0){
		my_doc.moveSelectionBy({y:my_doc.height, x:0});
	}
	my_doc.selectNone();
}
function rotateShip(d){
	var my_doc = fl.getDocumentDOM();
	var my_tl = my_doc.getTimeline();
	var currFrame = my_tl.currentFrame;
	var currLayer = my_tl.currentLayer;
	var my_frame = my_tl.layers[currLayer].frames[currFrame];
	var my_elems = my_frame.elements;
	for(var i=0;i<my_elems.length;i++){
		if(my_elems[i].name == "ship"){
			ship_elem = my_elems[i];
		}
	}
	my_doc.selectNone();
	my_doc.selection = [ship_elem];
	my_doc.rotateSelection(d*18/Math.PI, "center");
	my_doc.selectNone();
}
function killShip(){
	var my_doc = fl.getDocumentDOM();
	var my_tl = my_doc.getTimeline();
	var currFrame = my_tl.currentFrame;
	var currLayer = my_tl.currentLayer;
	var my_frame = my_tl.layers[currLayer].frames[currFrame];
	var my_elems = my_frame.elements;
	for(var i=0;i<my_elems.length;i++){
		if(my_elems[i].name == "ship"){
			ship_elem = my_elems[i];
		}
	}
	my_doc.selectNone();
	my_doc.selection = [ship_elem];
	my_doc.deleteSelection();
	my_lib.deleteItem("ship");
}