jquery ajax post href value without refreshing the page

Hello I want to post link value e.g. href="?id=1" my link

but without refreshing the page current it refreshes the page but i dont want reloading of the page, here is my code please help me

function loadTabContent(tabUrl){
    $("#preloader").show();
    jQuery.ajax({
        type: post,
        url: tabUrl, 
        data: "id="+country_id,
        cache: false,
        success: function(message) {
        jQuery("#tabcontent").empty().append(message);
        $("#preloader").hide();
        }
    });
}

jQuery(document).ready(function(){  

    $("#preloader").hide(); 
    jQuery("[id^=tab]").click(function(){   

        // get tab id and tab url
        tabId = $(this).attr("id"); 
        tabUrl = jQuery("#"+tabId).attr("href");

        jQuery("[id^=tab]").removeClass("current");
        jQuery("#"+tabId).addClass("current");

        // load tab content
        loadTabContent(tabUrl);
        return false;
    });
});