js traverses td tr and other html elements_basic knowledge

Copy code The code is as follows:

function checkuser(obj) {
var obj = window.event .srcElement;
var row = obj.parentElement.parentElement;
var value = row.cells[0].all[0].value;

var item = value.split("| ");
alert(item);
if (item.length > 1) {
if (item[0] == "org") {
alert('Please select a law enforcement officer ! ');
return false;
}

}
return true;
}