JS文本框默认值处理详解_javascript技巧

来源：曼谷因美食网

代码如下:

function txtFocus(el) {
if (el.defaultValue == el.value) { el.value = ''; el.style.color = '#000'; }
}

function txtBlur(el) {
if (el.value == '') { el.value = el.defaultValue; el.style.color = '#666'; }
}

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