FCKeditor Adds a slash on words with apostrof

Hello there,

I use FCKeditor 2.5. Whe i type words and submit my form it adds a slash before the apostrof.
e.g.: when i type can't the editor it will change it to can\'t
I'm working with php and i use $text=$_POST['FCKeditor1']; to accept the text from the FCKeditor

Pleade help me. Tnx