var headline_count;
var headline_interval;
var current_headline = 0;
var old_headline = 0;

$(document).ready(function(){
   headline_count = $(".slines li").size();
   $(".slines:eq(" + current_headline + ")").css('top', '0px');
 });
 
 function scrollToSC(w) {
	var ch = (old_headline + w);// % headline_count;
	var maxi = Number($("#scrollup").css('height').split('px')[0]) / 26;
	if ((headline_count - ch) < maxi) { ch = (headline_count - maxi); }
	else if (ch < 0) { ch = 0; }
	if (ch >= 0 && ch <= headline_count && (headline_count - ch) >= maxi) {
		current_headline = ch;
		var gT = -26 * current_headline;
		$(".slines:eq(" + 0 + ")").animate({top: gT},300);
		old_headline = current_headline;
	}
 }