Getting SyntaxError: Expected '{' - when calling a simple alert script in the Account On-load event

I'm getting this syntax error when the function is just.

function SAlert() {

           alert("Pop this Up");

}

This is in the Onload event for the account form. in a microsoft dynamics crm 2015 online instance.

My original script was to show a hidden tab but no matter how I corrected the script I get the syntax error. Is anyone else seeing this type of issue when adding a simple script to an account for for CRM online?

Thanks

Dave