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function toggleAll(cb)
{
var val = cb.checked;
var frm = document.forms[0];
var len = frm.elements.length;
var i=0;
for( i=0 ; i<len ; i++)
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XMLHttpRequest Script Injection XHR½Å±¾×¢Èë
Another approach to nonblocking scripts is to retrieve the JavaScript code using an XMLHttpRequest (XHR) object and then inject the script into the page. This technique involves creating an XHR object, downloading the JavaScript f ......