//Written by Paul Stothard, University of Alberta, Canada

function getRestrictionSiteString (type) {
	if (type.toLowerCase() == "standard") {
	    return "/aggcct/ (AatI agg|cct)3," +
	    "/gacgtc/ (AatII gacgt|c)1," +
	    "/tgcgca/ (Acc16I tgc|gca)3," +
	    "/cgcg/ (AccII cg|cg)2," +
	    "/tccgga/ (AccIII t|ccgga)5," +
	    "/aacgtt/ (AclI aa|cgtt)4," +
	    "/cacgtg/ (AcvI cac|gtg)3," +
	    "/gtac/ (AfaI gt|ac)2," +
	    "/agcgct/ (AfeI agc|gct)3," +
	    "/cttaag/ (AflII c|ttaag)5," +
	    "/accggt/ (AgeI a|ccggt)5," +
	    "/actagt/ (AhlI a|ctagt)5," +
	    "/gtgcac/ (Alw441 g|tgcac)5," +
	    "/agct/ (AluI ag|ct)2," +
	    "/agcgct/ (Aor51HI agc|gct)3," +
	    "/gggccc/ (ApaI gggcc|c)1," +
	    "/gtgcac/ (ApaLI g|tgcac)5," +
	    "/ggcgcgcc/ (AscI gg|cgcgcc)6," +
	    "/attaat/ (AseI at|taat)4," +
	    "/ggtacc/ (Asp718I g|gtacc)5," +
	    "/ttcgaa/ (AsuII tt|cgaa)4," +
	    "/c[cty]cg[agr]g/ (AvaI c|ycgrg)5," +
	    "/tgcgca/ (AviII tgc|gca)3," +
	    "/cctagg/ (AvrII c|ctagg)5," +
	    "/tggcca/ (BalI tgg|cca)3," +
	    "/ggatcc/ (BamHI g|gatcc)5," +
	    "/atcgat/ (BanIII at|cgat)4," +
	    "/ggcgcc/ (BbeI ggcgc|c)1," +
	    "/cacgtg/ (BbrPI cac|gtg)3," +
	    "/gcatgc/ (BbuI gcatg|c)1," +
	    "/actagt/ (BcuI a|ctagt)5," +
	    "/tgatca/ (BclI t|gatca)5," +
	    "/ctag/ (BfaI c|tag)3," +
	    "/cttaag/ (BfrI c|ttaag)5," +
	    "/atgcat/ (BfrBI atg|cat)3," +
	    "/agatct/ (BglII a|gatct)5," +
	    "/cctagg/ (BlnI c|ctagg)5," +
	    "/atcgat/ (BseCI at|cgat)4," +
	    "/gcgcgc/ (BsePI g|cgcgc)5," +
	    "/cggccg/ (BseX3I c|ggccg)5," +
	    "/accggt/ (BshTI a|ccggt)5," +
	    "/tgtaca/ (Bsp1407I t|gtaca)5," +
	    "/ccatgg/ (Bsp19I c|catgg)5," +
	    "/atcgat/ (BspDI at|cgat)4," +
	    "/tccgga/ (BspEI t|ccgga)5," +
	    "/tgtaca/ (BsrGI t|gtaca)5," +
	    "/gcgcgc/ (BssHII g|cgcgc)5," +
	    "/cgcg/ (BstUI cg|cg)2," +
	    "/atcgat/ (ClaI at|cgat)4," +
	    "/tttaaa/ (DraI ttt|aaa)3," +
	    "/cggccg/ (EagI c|ggccg)5," +
	    "/gaattc/ (EcoRI g|aattc)5," +
	    "/gatatc/ (EcoRV gat|atc)3," +
	    "/ggcgcc/ (EgeI ggc|gcc)3," +
	    "/ggccggcc/ (FseI ggccgg|cc)2," +
	    "/tgcgca/ (FspI tgc|gca)3," +
	    "/ggcc/ (HaeIII gg|cc)2," +
	    "/gt[cty][agr]ac/ (HincII gty|rac)3," +
	    "/aagctt/ (HindIII a|agctt)5," +
	    "/ga[acgturyswkmbdhvn]tc/ (HinfI g|antc)4," +
	    "/gttaac/ (HpaI gtt|aac)3," +
	    "/ccgg/ (HpaII c|cgg)3," +
	    "/ggcgcc/ (KasI g|gcgcc)5," +
	    "/ggtacc/ (KpnI ggtac|c)1," +
	    "/[acgturyswkmbdhvn]gatc[acgturyswkmbdhvn]/ (MboI |gatc)5," +
	    "/caattg/ (MfeI c|aattg)5," +
	    "/acgcgt/ (MluI a|cgcgt)5," +
	    "/tggcca/ (MscI tgg|cca)3," +
	    "/ttaa/ (MseI t|taa)3," +
	    "/ccgg/ (MspI c|cgg)3," +
	    "/gccggc/ (NaeI gcc|ggc)3," +
	    "/ggcgcc/ (NarI gg|cgcc)4," +
	    "/ccatgg/ (NcoI c|catgg)5," +
	    "/catatg/ (NdeI ca|tatg)4," +
	    "/gatc/ (NdeII |gatc)4," +
	    "/gccggc/ (NgoMIV g|ccggc)5," +
	    "/gctagc/ (NheI g|ctagc)5," +
	    "/gcggccgc/ (NotI gc|ggccgc)6," +
	    "/tcgcga/ (NruI tcg|cga)3," +
	    "/atgcat/ (NsiI atgca|t)1," +
	    "/ttaattaa/ (PacI ttaat|taa)3," +
	    "/acatgt/ (PciI a|catgt)5," +
	    "/ggcc/ (PhoI gg|cc)2," +
	    "/gtttaaac/ (PmeI gttt|aaac)4," +
	    "/cacgtg/ (PmlI cac|gtg)3," +
	    "/ttataa/ (PsiI tta|taa)3," +
	    "/ctgcag/ (PstI ctgca|g)1," +
	    "/cgatcg/ (PvuI cgat|cg)2," +
	    "/cagctg/ (PvuII cag|ctg)3," +
	    "/gtac/ (RsaI gt|ac)2," +
	    "/gagctc/ (SacI gagct|c)1," +
	    "/ccgcgg/ (SacII ccgc|gg)2," +
	    "/gtcgac/ (SalI g|tcgac)5," +
	    "/cctgcagg/ (SbfI cctgca|gg)2," +
	    "/agtact/ (ScaI agt|act)3," +
	    "/ggcgcc/ (SfoI ggc|gcc)3," +
	    "/cccggg/ (SmaI ccc|ggg)3," +
	    "/tacgta/ (SnaBI tac|gta)3," +
	    "/actagt/ (SpeI a|ctagt)5," +
	    "/gcatgc/ (SphI gcatg|c)1," +
	    "/aatatt/ (SspI aat|att)3," +
	    "/gagctc/ (SstI gagct|c)1," +
	    "/ccgcgg/ (SstII ccgc|gg)2," +
	    "/aggcct/ (StuI agg|cct)3," +
	    "/atttaaat/ (SwaI attt|aaat)4," +
	    "/tcga/ (TaqI t|cga)3," +
	    "/ctcgag/ (TliI c|tcgag)5," +
	    "/attaat/ (VspI at|taat)4," +
	    "/tctaga/ (XbaI t|ctaga)5," +
	    "/ctcgag/ (XhoI c|tcgag)5," +
	    "/cccggg/ (XmaI c|ccggg)5";
	}
	
	return true;
}