ok I found it after checking out the t-5.4 source
SymbolConstants.JAVA
public static final String ENABLE_PAGELOADING_MASK =
"tapestry.enable-pageloading-mask";
I gather you set it to boolean
With regard to the actual javascript error... thats happening from tapestry
doing some hidden body tag embellishment...
for some reason <input> tags are being picky
someone might want to doublecheck the markup being output for that and repair
it. Its the only red text that javascript editor flags when I view-source on
the page
