javascript

[dreamOfJob]

有没有会jacascript的,帮我给下面这代码做个注释,谢谢~~
function delItem(){
var partDetailId = new Array();
var tbody = document.getElementById('Table').childNodes[0];
var arrt = tbody.getElementsByTagName('INPUT');
var lent = arrt.length;
var arr = new Array();
for(var i=0;i<lent;i++){
if(arrt[i].type=='checkbox'){
arr.name='';
arr.push(arrt[i]);
}
}
var len = arr.length;
if(getSelectedItemCount('selectItem') > 0){
if(confirm("是否要删除?")){
for(var i = 0;i<len;i++){
if(arr[i].checked){
tbody.removeChild(arr[i].parentNode.parentNode);
document.maintainSetMealEditUIForm.partDetailId.value += arr[i].value+',';
}
}
}
}else{
alert("请选择要删除的项目!");
return false;
}
var lov = 0;
for(var i=0; i<tbody.childNodes.length; i++){
lov = formatNum(tbody.childNodes[i].childNodes[5].innerText) - 0 + lov;
}
document.getElementById('party').innerText = formatCurrency(lov);
valueChange();
}

[zhouxiangaibiancheng]

/*你的代码*/