Javascript problem?

This script is suppose to check to see if a date is correctly entered. It doesnt work.

Anyone see how to fix it?

PHP Code:

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if (tempobj.name.substring(0,7)=="reqdate") {
            if (tempobj.type=='text') {
                var splitted = tempobj.value.match("/\[\d{1,4}\.\d{1,4}\.\d{1,4}\]$/");
                if(splitted == null) {
                    pass=false;
                }
            break;
            }
        } 


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Try looking here: http://www.intranetjournal.com/ix/msg/40084.html

Code:

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/^\d{1,4}\.\d{1,4}\.\d{1,4}$/.test(tempobj.value);

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Ensures three groups of digits 1-4 digits each, separated by dots.