Convert any anchor with the .back-btn class in "intelligent" back buttons in jquery-mobile framework.

a.back-btn_jquery-mobile

// Implement .back-btn class bassed (self-explainatory) functionality for anchors.
$(".back-btn").each(function(){
    var btn = $(this); // me (.back-btn)
    var pageId = btn.closest("div[data-role='page']").attr("id"); // My page id.

    $('a[href="#' + pageId + '"]').each(function(){ // Anchors linking my page.
        var srcLink = $(this);
        var srcPageId = srcLink.closest("div[data-role='page']").attr("id"); // Their page id.

        // Awesome magic!! ;-)
        srcLink.on("click", function(){
            btn.attr("href", '#' + srcPageId);
        }); 

    }); 

});