function getImageWidth(myid)
{
	var newImg = new Image();
	newImg.src = document.getElementById(myid).src;
	var width = newImg.width;
	return width;
}

function getImageHeight(myid)
{
	var newImg = new Image();
	newImg.src = document.getElementById(myid).src;
	var height = newImg.height;
	return height;
}