$(document).ready(function() {

    // A list of css elements that need changing via js
    var changes = {
        '.wrapper' : {
                width: '925px'
            },
        '.columnSmall:last' : {
                margin: '0'
            }
    }
    
    // Loop through the the changes we need to makeand get the class
    for(cssClass in changes) {
        
        // Loop through the changes we need to make to this class
        for(change in changes[cssClass]) {
            
            // Replace : and after in the class name with nothing
            newValue = changes[cssClass][change];
            $(cssClass).css(change, newValue);
        }
    }
    
});