function replaceImage(midpath, imagepath, caption ) {
	
	var a = document.getElementById('cur_link');
	var b = document.getElementById('cur_pic');
	var c = document.getElementById('cur_cap');
	
	a.title = caption;
	a.href= imagepath;
	
	b.src = midpath;
	
	c.innerHTML = caption;
	

}