Checks emails format, unlike others it supports have a plus (+) sign in the address.
NOTE: this is easy for the user to by pass, as it is in javascript witch is not server side code.
function emlChk(str) // email format checker/validator.
{
var filter=/^([\w-]+((?:\.|\+)[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
if(filter.test(str))
{
return true
} else {
return false
}
}