JS获取 FreeTextBox的值,该如何处理

JS获取 FreeTextBox的值JS怎么获取FreeTextBox的值[解决办法]document.getElementByID( )????document.

JS获取 FreeTextBox的值
JS怎么获取   FreeTextBox的值

[解决办法]
document.getElementByID( " ") ????

document.getElementByName( " ") ????