Variable name question

I have some questions about Javascript.
I have a statement that does not work, Why?

var 99 = "favorite number"
document.write("What is your" + 99 + "?")

Dennis

1dennis, your question was moved to its own thread in the Javascript forum... It in no way related to the PHP object thread...

As with most languages, Javascript does not support variable names that are numbers... they can contain numbers [usually on the end of the variable name], but need numbers as well.

try something like:

var prompt = "favorite number";
document.write ("What is your " + prompt + " ?");