var G = new Object();

function startmove(ele) {
	G.movingEle = ele;
	document.onmousemove = function (evt) { domove(evt) }
	document.onmouseup = function (evt) { endmove(evt) }
}

function domove(evt) {
	G.movingEle.style.top = evt.pageY + 'px';
	G.movingEle.style.left = evt.pageX + 'px';
}

function endmove() {
	document.onmousemove = null;
	document.onmouseup = null;
	G.movingEle = null;
}