/**
 * @author She
 */
var $q = jQuery.noConflict();

$q(document).ready(function() {
	
    	    $q("#arr-right").click(function() {
		   	    var slider = $q(this).parent("#related-box").children("#related-articles-mask").children("#related-articles");
	            var med = slider.children("li").size()/3;
	            var medArr = "'"+med+"'";

	            if(medArr.indexOf('.')== -1){
	            	var indice = -Math.floor(med)+1;
	            }
	            else{
	            	var indice = -Math.floor(med);
	            }
	            var position = slider.position();
	            var id = position.left/624;
	            if (id < indice+1){
	            	slider.stop(true, true).animate({left: '0'}, 400);	
	            }
	            else {
	            	slider.stop(true, true).animate({left: '-=624'}, 400);
	            }
			}); 
			
			
			$q("#arr-left").click(function() {
		   	    var slider = $q(this).parent("#related-box").children("#related-articles-mask").children("#related-articles");
	            var med = (slider.children("li").size()/3);
	            var medArr = "'"+med+"'";
	            
				if(medArr.indexOf('.')== -1){
	            	var indice = -(Math.floor(med)*624)+624;
	            }
	            else{
	            	var indice = -Math.floor(med)*624;
	            }
	            var position = slider.position();
	            var id = position.left/624;
	     
	            if (id > -1){
	            	slider.stop(true, true).animate({left: indice}, 400);	
	            }
	            else {
	            	slider.stop(true, true).animate({left: '+=624'}, 400);
	            }
			}); 

});