JavaScript – Email Validation script

var emailfilter=/^w+[+.w-]*@([w-]+.)*w+[w-]*.([a-z]{2,4}|d+)$/i

function checkmail(e){
var returnval=emailfilter.test(e.value)
if (returnval==false){
alert(“Please enter a valid email address.”)
e.select()
}
return returnval
}

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