Say
I have a javascript var like "Sometext/'s"...
How do I use this variable for the initial value of a form textbox?

window.onload=function(){
	formelement.value = (formelement.value=='') ? defaultvalue : formelement.value;
}

Like that?
Or does it have to be immediately there when that specific elemnent loads?
If so, I don't think that's possible.

I don't think you understand the problem, if my var is "Sometext\'s" ...
alert(var) will display in alert box as Sometext's
However textbox value...
value = var will display Sometext\'s

If you know which type of quotes encapsulate your whole string, just unescape all the other quotes.

If your string is encapsulated by double-quotes:

var = var.replace(/\\'/g,'\'');

Quotes are not the problem the \' is.

Yea what I posted should replace \' with '.

Or, when you assign the value, you could skip the backslash altogether and just wrap the string in quotes that are opposite of what you're using within:

var value = "Sometext's";