jQuery(document).ready(function() {

	var formfield;

	jQuery('#Image_button').click(function() {
		jQuery('html').addClass('Image');
		formfield = jQuery('#Image').attr('name');
		tb_show('', 'media-upload.php?type=image&TB_iframe=true');
		return false;
	});

	// user inserts file into post. only run custom if user started process using the above process
	// window.send_to_editor(html) is how wp would normally handle the received data

	window.original_send_to_editor = window.send_to_editor;
	window.send_to_editor = function(html){

		if (formfield) {
			fileurl = jQuery('img',html).attr('src');

			jQuery('#Image').val(fileurl);
      jQuery('#previewimage').attr('src', fileurl);

			tb_remove();

			jQuery('html').removeClass('Image');

		} else {
			window.original_send_to_editor(html);
		}
	};

});