jQuery(document).ready(function ($) { var numbClick = 0; $('a[href*="#scrolldown"]').click(function(){ var elemToGo = $(this).attr('href'); var speed = 750; if(numbClick!==0){ elemToGo += numbClick; if(!$(elemToGo).length){ // if the section #sectionAnyNumber doesn't exist, then. elemToGo = "#scrolldown"; //I put back the first section. numbClick=0; //I reinit the the value of number of click. } } numbClick++; $('html,body').animate( { scrollTop: $(elemToGo).offset().top },speed ); return false; } ); });