var text = document.getElementById('text');
var btn = document.getElementById('btn');
var tab = document.getElementById('tab');
btn.onclick = function (){
for (var i = 0; i < tab.tBodies[0].rows.length; i++) {
var tab_v =? tab.tBodies[0].rows[i].cells[1].innerHTML.toLowerCase();
var text_v = text.value.toLowerCase();
if (tab_v.search(text_v)!= -1) {
tab.tBodies[0].rows[i].style.background = '#abcdef';
} else {
tab.tBodies[0].rows[i].style.background = '';
}
}
}
