parameters in VisibleHuman.html

	wframe : width of detailed window
	hframe : height of detailed window
	imgdir : image directory of "imagebase"
	slicex : initial slice number of x(Axial) in preview
	slicey : initial slice number of y(Sagittal) in preview
	slicez : initial slice number of z(Coronal) in preview
	scale : inital scale of detailed window
	maxp 2
	step 5
	imgbase : url of image files.
		  imgbase + imgdir will make the whole url.