谷歌音乐搜索栏的提示功能php修正代码

/**
* 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,false);
if(hideBox){
l.events.listen(searchBox,"change",bind(m.hint.onInputChange,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;
}
}
};