Your browser does not support JavaScript,but it does not matter.JavaScript syntax here does not affect the content of the statement.If you need to select the front size,IE6 users, please press ALT V → X → (G)x-large(L)large(M)medium(S)small(A)x-small to select your text size. The IE7 or Firefox browsers can use the keyboard Ctrl ( ) enlarge(-) reduce to change the font size. If you want go back to previous page,you can use the keyboard's ALT left arrow button achieve. If you want print function, you can use Ctrl P function.