HTML // code
input id ="submit_btn" type="submit" value="find" onclick="goto();"
Javascript / code
function goto()
{
if (document.getElementById("s_keyword").value != "") {
var url = ("https://www.youtube.com/results?search_query=" + document.getElementById("s_keyword").value);
var site = window.open(url, '_blank');
site.focus();
}
};
it never enters into goto function !