/** * 为搜索框添加提示功能 * @param searchTip 提示信息 * @param searchBoxId 搜索输入框 ID * @param hideBoxId 关键字隐藏框 ID */ m.hint.initHint = function(searchTip, searchBoxId, hideBoxId){ var searchBox = document.getElementById(searchBoxId); var hideBox = null; if(searchBox){ if(hideBoxId) { hideBox = document.getElementById(hideBoxId); } l.events.listen(searchBox, "blur", l.bind(m.hint.onInputBlur, null, searchBox, hideBox), false); l.events.listen(searchBox, "focus", l.bind(m.hint.onInputFocus, null, searchBox, hideBox), false); if(hideBox){ l.events.listen(searchBox, "change", bind(m.hint.onInputChange, null, searchBox, hideBox), false); hideBox.value = m.hint.getInputValue(searchBox); } // 在这里将搜索提示赋给临时变量 m.hint.Gh[searchBox] = searchTip; // 如果搜索框存在, 则为搜索框加上临时变量和灰色字的 class m.hint.onInputBlur(searchBox); } }; m.hint.onInputBlur = function(searchBox, hideBox) { m.hint.fi(searchBox); hideBox && m.hint.onInputChange(searchBox, hideBox); }; m.hint.fi = function(searchBox) { if(searchBox) { var searchTip = m.hint.Gh[searchBox]; if(searchTip && (searchBox.value.trim()=="" || searchBox.value==searchTip)) { searchBox.setAttribute(m.hint.IS_HINT, "1"); searchBox.className += " hint"; searchBox.value = searchTip; } } };