function PreviewPic(pic_path, dim_x, dim_y) {
	window.open(pic_path,'preview_pic','resizable=yes,scrollbars=yes,width='+dim_x+',height='+dim_y);
}	

function PreviewPic2(pic_path, dim_x, dim_y) {
	window.open(pic_path,'preview_pic','resizable=yes,scrollbars=no,width='+dim_x+',height='+dim_y);
}