once you call document.write(...), the document content is overwritten, the frmList disappears, you should see a scripting errorto test, tryfunction checkAll() {
num = document.frmList.elements.length;
for(var i=0; i< num; i++) {
alert(i);
....
}
num = document.frmList.elements.length;
for(var i=0; i< num; i++) {
alert(i);
....
}
解决方案 »
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