document.getElementById('Layer10-title').style.display == 'n

document.getElementById('Layer10-title').style.display == 'n document.getElementById("left").style.height=document.getEle mainBoard=document.getElementById("board"); document.getElementById("time").value=tim; document.myform.c document.getElementById() style.display=""与style.display="block“的区别 getObject().style.display = ""; getObject().style.display = mDiv.style.display=''; mDiv.style.display='none'; mDiv.style aOpt[this.index].style.display="block"; style.display='block' 有什么效果 $_$("txtValidate")[i].style.display = ""; document.write('.submenu{display:none;}\n')是什么意思