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function trim(str) { return str.replace(/(^\s*)|(\s*$)/g, ""); } function queryByInput(qtext,target) { if (trim(qtext) != "") { window.open("//1118.cctv.com/search/index.shtml?keyword=" + encodeURIComponent(qtext), target); } else { window.open("//1118.cctv.com/search/index.shtml", target); } } document.getElementById("search_qtext").onkeydown = function() { var event = window.event || arguments[0]; if (event.keyCode == 13) { //回车 try { event.cancelBubble = true; event.returnValue = false; event.stopPropagation(); event.preventDefault(); } catch (e) {} queryByInput(document.getElementById("search_qtext").value, "_blank"); } } $('#search_btns').on('click', function (e) { e.preventDefault() queryByInput(document.getElementById("search_qtext").value, "_blank"); });