function submenu(index) {
	var subpos = 'mainitem' + index;
	var submenu = 'submenu' + index;
	if (document.getElementById(submenu).style.visibility == 'hidden') {
		document.getElementById(submenu).style.visibility = 'visible';
		document.getElementById('menu').style.zIndex = '10';
	} else {
		document.getElementById(submenu).style.visibility = 'hidden';
		document.getElementById('menu').style.zIndex = '1';
	}
}

var clickDrag = false;

function startDrag() {
	clickDrag = !clickDrag;
	if (clickDrag) {
		document.onmousemove = changePosition;
	} else {
		document.onmousemove = "";
	}
}

function changePosition(drag) {
	document.getElementById("editmenu").style.left = drag.pageX-8 + "px";
    document.getElementById("editmenu").style.top = drag.pageY-50 + "px";
}