我用 Javascript 编写了一个函数,该函数将在页面加载时触发。该功能第一次运行良好。但是如果我在访问其他页面后返回索引页面,它就无法正常工作。它在一定程度上确实可以正常工作,但之后会跳过代码。
以下是我的功能
<script>function populate() {
//alert("The Flag is "+$('#flag').val());
val =document.getElementById('flag').value;
xml =document.getElementById('xml').value;
alert(xml);
if (val === "M") {
if (window.ActiveXObject) {
doc = new ActiveXObject('Microsoft.XMLDOM');
doc.async = 'false';
doc.loadXML(xml);
alert("ActiveX");
} else {
var parser = new DOMParser();
doc = parser.parseFromString(xml, 'text/xml');
// alert("DOMparser");
}
alert("Value true");
/* upto here function works correctly each time
* I have also seen the values of both val and xml are coming correctly
*/
passportNo = doc
.getElementsByTagName('PASSPORT_NO')[0].childNodes[0].nodeValue;
//alert('passportNo ' + passportNo);
document.getElementById('passportNo').value = passportNo;
pass_type = doc.getElementsByTagName('PASS_TYPE')[0].childNodes[0].nodeValue;
// alert("Pass_type = " + pass_type);
if (pass_type === "I") {
document.getElementById('in').checked = true;
} else if (pass_type === "O") {
document.getElementById('out').checked = true;
}
jobNo = doc.getElementsByTagName('JOB_NO')[0].childNodes[0].nodeValue;
//alert("jobNo = "+jobNo);
document.getElementById('job_no').value = jobNo;
jobDt = doc.getElementsByTagName('JOB_DT')[0].childNodes[0].nodeValue;
//alert("jobDT "+jobDt);
document.getElementById('DT').value = jobDt;
//Clear xml
nationality =doc.getElementsByTagName('NATIONALITY')[0].childNodes[0].nodeValue;
document.getElementById('nationality2').value = nationality;
element = document.getElementById('nationality');
element.value = nationality;
}
} </script> `
这就是我所说的
<body onload="populate()">
<table width="1270" align="center">
<tr>
<td width="1010" height="46" colspan="3" align="center"><h1>Currency
Declaration Form</h1></td>
</tr>
</table>
<input type="hidden" id="flag" value="<%=code%>" />
<input type="hidden" id="xml" value="<%=xml%>" />
<form name="myForm" action="Entry.do" method="post"
onsubmit="return validateAll()" class = "autocompleteOff">
<table width="1042">
<tr class="heading">
</tr>
<tr>
<td width="256" align="left"><input type="radio" name="inout"
id="in" value="I" /> <label>INCOMING </label> <input type="radio"
name="inout" id="out" value="O" /> <label>OUTGOING </label></td>
<td width="774" align="right"><label>JobNo/DT</label> <input
type="text" name="job_no" id="job_no" readonly="readonly"
tabindex="-1" /> <input type="text" name="DT" id="DT"
readonly="readonly" tabindex="-1" value="<%=Convert.getSysDate()%>" /></td>
</tr>
</table>`