邵长安的个人博客

范例：

//返回一个异步结果

function getAjax(url,strtype,strvalue){

var xmlhttp;

if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari

xmlhttp=new XMLHttpRequest();

}

else {// code for IE6, IE5

xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");

}

xmlhttp.open("POST",url+"?strtype="+strtype+'&strvalue='+strvalue+'&random='+Math.random(),false);

xmlhttp.send();

return xmlhttp.responseText;

}

//半成品出库表单，有了半成品序号显示半成品的名称、长度、重量、提示，用于替换show_seinfo(obj)函数

function show_seinfo2(obj){

seid=obj.value.trim();

var oTr=obj;

//循环直到找到tr   不能通过焦点法获取行号，因为此时失去焦点

for(var i=0;oTr.tagName.toLowerCase()!="tr";i++){

oTr=oTr.parentNode;

}

var trline=oTr.rowIndex - 1;

var objs_sename=document.getElementsByName("SeName");

var objs_selength=document.getElementsByName("SeLength");

var objs_seweight=document.getElementsByName("SeWeight");

var objs_note=document.getElementsByName("Note");

if(seid == ""){

//编码为空，清空该行的数据

objs_sename[trline].value = "";

objs_selength[trline].value= "";

objs_seweight[trline].value= "";

objs_note[trline].value= "";

}

else {

objs_sename[trline].value = getAjax('show_painfo2.asp','paname',seid);

objs_selength[trline].value = getAjax('show_painfo2.asp','palength',seid);

objs_seweight[trline].value = getAjax('show_painfo2.asp','paweight',seid);

objs_note[trline].value = getAjax('show_painfo2.asp','panote',seid);

}//else结束

}