/**
* Change styles
* @example changeStyle('elementId', 'background', '#fcc000', 'fontSize', '16px');
* @author Viktoras Agejevas
*/
function changeStyle(element)
{
    elem = document.getElementById(element);
    
    for (i=1; i<=arguments.length; i+=2) {
        elem.style[arguments[i]] = arguments[i+1];
    }
}