智能搜索带有太多内存

Question

我使用AJAX智能搜索生成查询并在点击时填充表单字段。这一切都可以达到这一点。我有一个我无法弄清楚的错误。我需要在点击时重置URL参数，如果用户删除搜索字段中的所有内容，我还需要重置它们。这样，二次搜索就可以清除以前的任何数据，这就是我遇到的问题。基本上我需要刷新选项而不刷新整个页面。

/* JS File */

// Start Ready
$(document).ready(function() {  

// Icon Click Focus
$('div.icon').click(function(){
    $('input#search').focus();
});

// Live Search
// On Search Submit and Get Results
function search() {
    var query_value = $('input#search').val();
    $('b#search-string').html(query_value);
    if(query_value !== ''){
        $.ajax({
            type: "POST",
            url: "search.php",
            data: { query: query_value },
            cache: false,
            success: function(html){
                $("ul#results").html(html);
            }
        });
    }return false;    
}

$("input#search").live("keyup", function(e) {
    // Set Timeout
    clearTimeout($.data(this, 'timer'));

    // Set Search String
    var search_string = $(this).val();

    // Do Search
    if (search_string == '') {
        $("ul#results").fadeOut();
        $('h4#results-text').fadeOut();
//-----------------------------------------------------
// Clear all Form elements when search_string is blank
//-----------------------------------------------------
                document.getElementById('firstName').value='';
                document.getElementById('lastName').value='';
                document.getElementById('email').value='';      
                document.getElementById('phone').value='';              
                document.getElementById('search').value=''; 

    }else{
        $("ul#results").fadeIn();
        $('h4#results-text').fadeIn();
        $(this).data('timer', setTimeout(search, 100));
    };
});
});


function getUrlVars() {
var vars = {};
var parts = window.location.href.replace(/[?&]+([^=&]+)=([^&]*)/gi, function(m,key,value) {
    vars[key] = value;
});
return vars;
}

function setclient() {
                var email = getUrlVars()["setemail"];
                var phone = getUrlVars()["setPhone"];
//----------------------------------------
// Strip HTML out of email string
//----------------------------------------
                var div = document.createElement("div");
                div.innerHTML = email;
                var email = div.textContent || div.innerText || "";
//----------------------------------------
// Strip HTML out of company string
//----------------------------------------
                var company = getUrlVars()["company"];
                var div = document.createElement("div");
                div.innerHTML = company;
                var company = div.textContent || div.innerText || "";
//----------------------------------------
// Strip HTML out of First name string
//----------------------------------------
                var firstname = getUrlVars()["setFname"];
                var div = document.createElement("div");
                div.innerHTML = firstname;
                var firstname = div.textContent || div.innerText || "";
//----------------------------------------
// Strip HTML out of Last name string
//----------------------------------------
                var lastname = getUrlVars()["setLname"];
                var div = document.createElement("div");
                div.innerHTML = lastname;
                var lastname = div.textContent || div.innerText || "";
//----------------------------------------
// Convert company string to Title Case
//----------------------------------------
                var str = company;
                function eachWord(str){
                    return str.replace(/\w\S*/g, function(txt){return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();});
                }
                var company = eachWord(str);
//----------------------------------------
// Set Form Fields on click
//----------------------------------------
                document.getElementById('firstName').value=firstname;
                document.getElementById('lastName').value=lastname;
                document.getElementById('email').value=email;       
                document.getElementById('phone').value=phone;               
                document.getElementById('search').value=company;
//----------------------------------------
// Close search results onclick
//----------------------------------------
        $("ul#results").fadeOut();
        $('h4#results-text').fadeOut();
                }