search in data view web part per column title on site page using java script

i created site page, i added dataview web part for document library, i added html form web part and i added javascript code in them for searching per column title in dataview web part. i connected html form web part to dataview web part on title column. my code is

<script type="text/javascript">
    function Search() {
        var searchContent = document.getElementById('txtSearch').value;
        if (searchContent != '') {
            var url;
            url = "http://test-net.dri.local/DocLib7/forms/timI.aspx?FilterName=Title&FilterMultiValue=*"+searchContent+"*";

            window.location.href = url;
             
          
        }
        else {
            alert("Поље за претрагу је празно унесите текст!");
        }
    }
    function ResetSearch(){
        var reseturl;
            reseturl ="http://test-net.dri.local/DocLib7/forms/timI.aspx"
        window.location.href = reseturl;
    }</script><input id="txtSearch" name="FilterMultiValue" type="text" placeholder="Trazi" /><input onclick="Search();" type="button" value="Тражи"/><input onclick="ResetSearch();" type="button" value="Уклони претрагу"/>  

the problem is with var url. how configuring this variable