<script type="text/javascript">
    function jsn() {

        //var ss = '{"val": "val_in }"';
        var ss = document.getElementById('t');
        document.write(ss);

        int = 0;
        if (int < ss.length) {
            var sa = '{'
            var as = '}'
            var cov = '"'
            var cov2 = ':"'
            var xs = sa + cov + ss + cov2 + as
        }

        document.write(xs);
    }
</script>
  asdasd
    <input class="t" type="text" id="t" value="t" />
    asd
    <input class="t" type="button" value="t" id="t" onclick="jsn()" />



 <div id="test"  ><form>
    <input type="button" id="test" onclick="te()" />
    text
     <input id="rez" >
     </form>
</div>