Need Help..

[phpSensei]

I asked for help and someone posted this to me...

 

function replaceText(text, textarea)
{
// Attempt to create a text range (IE).
if (typeof(textarea.caretPos) != "undefined" && textarea.createTextRange)
{
	var caretPos = textarea.caretPos;

	caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? text + ' ' : text;
	caretPos.select();
}
// Mozilla text range replace.
else if (typeof(textarea.selectionStart) != "undefined")
{
	var begin = textarea.value.substr(0, textarea.selectionStart);
	var end = textarea.value.substr(textarea.selectionEnd);
	var scrollPos = textarea.scrollTop;

	textarea.value = begin + text + end;

	if (textarea.setSelectionRange)
	{
		textarea.focus();
		textarea.setSelectionRange(begin.length + text.length, begin.length + text.length);
	}
	textarea.scrollTop = scrollPos;
}
// Just put it on the end.
else
{
	textarea.value += text;
	textarea.focus(textarea.value.length - 1);
}
}

 

it is a function to wrap a bbcode around A TEXT, to a text area..

 

How would you make the form, and text area? What should I call them?