Custom Target Window

<a
href=”url.com” target=”custom”
onclick=”window.open(this.getAttribute(‘href’),
this.getAttribute(‘target’),
‘width=770,height=800,scrollbars=yes,resizable=yes’).focus(); return
false;”></a>

I need to have my ad’s pop open a custom sized window when clicked.

I’m using an ad network that allows me to use Target _blank (etc) and a custom target. I’m not a great developer yet so I’m just learning but I’ve copied this snippet from another site. If I just use this in my normal html page in a normal random link then it will open up the customized window. However my ad network (ad speed) only allows me to put the _custom word there. I can’t paste all the code there… only the word custom like shown.

So what am I supposed to do with the rest of that code? Is it a java script snippet that I would put at the top of the html page or what?

Does my question make sense?

Thanks, I’m in a hurry with this so any help would greatly help : )

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