$(document).ready(function (){ 
	
	// visibility of content
	$("#preview-window").css("display", "block");
	$("#btn-preview").click(function () { 
		$("img#shadow").css("display", "block")
	});
	
	// initialise counters
	var items = $("#pdf-browser .items a").length;
	$("#shown-pages").replaceWith("<p id='shown-pages'></p>");
	
	// page browser
	$("#pdf-browser").scrollable({size:3, items:'.items', prev:'#previous', next:'#next'});
	
	// load image
	$("#pdf-browser .items a").click(function () { 
		
		// update counters
		var current = ($("#pdf-browser .items a").index(this)) + 1;
		$("#controls p#current-page")
			.replaceWith("<p id='current-page'></p>");
		
		// image switch
		$("#preview-window img#pdf-page")
			//.css("background", "url(" + this.href + ") no-repeat left top")
			.replaceWith("<img id='pdf-page' src='"+ this.href +"' width='700px' alt='' />");

		return false;
		
	});
	
	
});