Microsoft VBScript compilation error '800a0409'

Unterminated string constant

/us/eng/products/valves/howtochooseavalve/How+to+choose+the+right+valves.asp, line 10

StrKeywords = "APV, DELTA, SV, SVS, butterfly, SW4, S2, VPM, M4, MP4,SD4, SDM4, mix-proof, DE3, DA3+, DKR, DKRT, SI2, VRA, VRAH, UF, RUF, VPN, PR2, PRD2""
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