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Message: [QUOTE="Tuxedo, post: 4962032"] Erwin Moller wrote: [...] Thanks for explaining this procedure. So for example, by creating the two arrays as well as the MyIndexes array for the randomization: ... var keys = new Array ("key1","key2","key3"); var values = new Array ("value1", "value2", "value3"); var MyIndexes = new Array(0,1,2) MyIndexes.sort(function() {return 0.5 - Math.random()}) .... how could I read out/rebuild the first two arrays based on the MyIndexes order, and thereafter return both, in for example a document.write() or alert() event? [/QUOTE]