Detect embedded flash objects on page (JavaScript)

detect-flash-objects.js

function containsSWFObjects() {
	var s, 
	    selectors = [
		'object param[name="movie"][value*=".swf"]',
		'object param[name="src"][value*=".swf"]',
		'embed[src*=".swf"]',
		'object[data*=".swf"]'
	];

	while (s = selectors.pop()) {
		if (document.querySelectorAll(s).length) {
			return true;
		}
	}

	return false;
}