$(document).ready(function() {
	var sentenceCount = $("#sentenceCount").html();
	window.setTimeout("changeSentence("+sentenceCount+", 0)", 4000);
});

function changeSentence(count, pos) {
	$("#mpbox_sentence_"+pos).hide();
	pos++;
	if (pos == count) {
		pos = 0;
	}
	$("#mpbox_sentence_"+pos).show();
	window.setTimeout("changeSentence("+count+","+pos+")", 4000);
}