I am currently studying web design (with emphasis on the design part) and I'm trying to do a small bit of work on the side to beef up my portfolio. I believe this is a JavaScript question: I have a client who would like a particular page to require that the user enter a code (there are many which are acceptable) from a voucher they have before they are transported to another page. I can't seem to find this function. If anyone knows about this any info would be GREATLY appreciated!