使用身份填充<a href="mailto:&amp;subject"

Question

="" Is there a way to set ID to some field, and later to use that in < a href="mailto:&subject">, without using function?

For example:

<input id="abc" type="text"/>
<a href="mailto:someone@something.com&subject=abc(id)">

Basically, to be self populated, when I type in some text in the "Some input:" field.