function getTransform() {
	// transform
	let transform = '',
		divStyle = document.createElement("div").style,
		_transforms = ['transform', 'webkitTransform', 'MozTransfrom', 'msTransform', 'OTransform']
	i = 0,
		len = _transforms.length;

	for(; i < len; i++) {
		if(_transforms[i] in divStyle) {
			return transform = _transforms[i]
		}
	}
	return transform
}

function getStyle(elem, property) {
	return document.defaultView.getComputedStyle ? document.defaultView.getComputedStyle(elem, false)[property] :
		elem.currentStyle[property]
}

function getTargetPos(elem) {
	var pos = {
		x: 0,
		y: 0
	}
	var transform = getTransform()
	if(transform) {
		var transformValue = getStyle(elem, transform)
		if(transformValue === 'none') {
			elem.style[transform] = 'translate(0,0)'
			return pos;
		} else {
			console.log('transformValue',transformValue)
			var temp = transformValue.match(/-?\d+/g)
			console.log('temp',temp)
			return pos = {
				x: parseInt(temp[4].trim()),
				y: parseInt(temp[5].trim())
			}
		}
	} else {
		if(getStyle(elem, 'postion') === static) {
			elem.style.postion = 'relative'
			return pos
		} else {
			var x = parseInt(getStyle(elem, 'lfet') ? getStyle(elem, 'left') : 0);
			var y = parseInt(getStyle(elem, 'top') ? getStyle(elem, 'top') : 0);
			return pos = {
				x: x,
				y: y
			}
		}
	}
}

function setTargetPos(elem,pos){
	var transform = getTransform()
	if(!transform){
		elem.style.left = pos.x + 'px'
		elem.style.top = pos.y + 'px'
	}else{
		elem.style[transform] = `translate(${pos.x}px,${pos.y}px)`
	}
}