add this code to custom css (edit>configuration>user custom css)

_{a[href^="javascript:"] { color: #DC45AE !important }}

this displays all js links in pinks, you can change the colour by changing hex value. especially useful when using openalllinks macro so you know which links will not be parsed

O_o

I thought you were going to suggest other thing...

Anyway, that rule isn't helpful for links such as:

a href="#" on[anyevent]="function();"

So, I never did, but maybe you should add:

_{a[href^="javascript:"],a[on[theeventyouwant]*="("]{ color: #DC45AE !important }}

As I say, I never intended to do such rule, so I don't know if the on[theeventyouwant] property is selectable by CSS. Probably not.

Ok, events properties are selectable, so you need to add all possible events as explained above:

onclick
onmouseover
onmouseout
onchange
on...
.
.
.

those are very good tips, thanks john