jsp input框的显示和隐藏

document.getElementById(id).style.display="none";为隐藏

//document.getElementById("test1").style.display="block";//显示

document.getElementById(id).style.display="";为显示

代码实例

<table width="100%" class="resbutton"><tr><td align="left" width="33%"><input type="button" name="DataMaintenance" class="button"value="新增" onclick="add()" id="news"/><input type="button" name="DataMaintenance" class="button"value="修改" onclick="modify()" id="test1" /></td></tr></table><script Language="Javascript1.2">if(table1.rows.length==0){//alert("aaa");    document.getElementById("test1").style.display="none";//隐藏

document.getElementById("test1").style.display="";//显示

}else{//alert("bbb");    document.getElementById("news").style.display="none";}

</script>