$(document).ready(function() {
  projectsScroller();
});

			  /*************************/
			 /*****   FUNCTIONS   *****/
			/*************************/

function projectsScroller() {

    // Position
    var spos = 1;
    
    // Number of elements
    var elcount = $('#projects-scroll > div').size();
    
    // Width of an element (the first)
    var elw = $('#projects-scroll > div').first().width();
        
    $('#project-scroll-left').click(function(){
        $('#projects-scroll').animate({marginLeft:'-'+(spos*elw)+'px'});        
        spos = ++spos % elcount;
    });    
}