Microsoft VBScript compilation error '800a0408'

Help, I'm trying to run a stored procedure, but i'm getting the following error -

"Microsoft VBScript compilation error '800a0408'

Invalid character

/admin/afterreviewupdatepricing.asp, line 39

if(Request.QueryString(“day7“) <> "") then updatepricingCommand__7dayrate = Request.QueryString(“day7“)"

Where row 39 is -

if(Request.QueryString(“day7“) <> "") then updatepricingCommand__7dayrate = Request.QueryString(“day7“)

I've attached the code --


Any ideas as to what I'm doing wrong????

Thanks