js cambia la imagen de fondo

lt;textarea?id=tttgt;lt;/textareagt;

lt;script?type=text/javascriptgt;

ttt.style.backgroundImage= 'url(SH101721.JPG)';

ttt.style.width='100';

ttt.style.height='400';

lt;/scriptgt;

Suplemento:

lt; divgt; no hay problema

lt; div?id=tttgt;

sdf3904875hjdfs987rth324uioyf987sdaf987324iohfo8lt

sdf3904875hjdfs987rth324uioyf987sdaf987324iohfo8lt; < / p>

sdf3904875hjdfs987rth324uioyf987sdaf987324iohfo8lt;brgt;

lt;/divgt;

lt;script?type=text/javascriptgt;

ttt.style. backgroundImage ='url(中国心.jpg)';

lt;/scriptgt;