function nl_blur(field){if(field.value.search(/^[a-zA-Z][\w\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]$/)==-1)
{return false;}
else
return true;}
function nl_submit(sform){if(!nl_blur(sform.email))
{alert('Please enter valid email address');sform.email.focus();return false;}
else
{this.submit();}}