Ok, I fixed it for u.
Open file
rainbow.js:
Find:
Code:
rainText+="<strong><font color=\"#"+colourscheme[c1]+colourscheme[c2]+colourscheme[c3]+colourscheme[c4]+colourscheme[c5]+colourscheme[c6]+"\">"+words[ch]+"</font></strong>";
Replace with:
Code:
rainText+="<strong><font color=\"#"+colourscheme[c1]+colourscheme[c2]+colourscheme[c3]+colourscheme[c4]+colourscheme[c5]+colourscheme[c6]+"\">"+words.charAt(ch)+"</font></strong>";
words[ch] ==> words.charAt(ch)
Tested, work for IE.