I have added custom option in product as selectbox. Its showing fine on frontend but in select box + sign its showing. Is there a way to remove + Sign Symobl

Select Box options are

-- Please Select --

400x600x300 + Rs1,992.00

450x600x300 + Rs2,121.00

I have change js/varien/configurable.js

var str = ''; price = parseFloat(price); if(showSign){ if(price<0){ str+= '-'; price = -price; } else{ str+= '+'; to str+= '+'; } }