Как сохранить файл JS в IE < 10?

function isIE () {
       var myNav = navigator.userAgent.toLowerCase();
       return (myNav.indexOf('msie') != -1) ? parseInt(myNav.split('msie')[1]) : false;
    }

function save(data) {
   if(isIE() == 9) {
        		// Solution was taken from 
        		// http://megatuto.com/formation-JAVASCRIPT.php?JAVASCRIPT_Example=Javascript+Save+CSV+file+in+IE+8/IE+9+without+using+window.open()+Categorie+javascript+internet-explorer-8&category=&article=7993
//				var URI = 'data:text/plain;charset=utf-8,';

				// Prepare data
				var testlink = window.open("about:blank", "_blank");
				testlink.document.write(data); //fileData has contents for the file
				testlink.document.close();
				testlink.document.execCommand('SaveAs', false, path);
				testlink.close();         		
    } else {
	            var blob = new Blob([data], {type: "text/plain;charset=utf-8"});
	            saveAs(blob, path);
	            if(cb) res = cb(res);                		
    }
}