$(window).scroll(function(){
	evaluateVisibility()
});

$(window).resize(function(){
	evaluateVisibility()
});

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

function isScrolledIntoView(elem) {
    var docViewTop = $(window).scrollTop();
    var docViewBottom = docViewTop + $(window).height();

    var elemTop = $(elem).offset().top;
    var elemBottom = elemTop + $(elem).height();

    return ((elemBottom >= docViewTop) && (elemTop <= docViewBottom));
}