init = function() {
	var cityPhone = document.getElementById('city');
	var cityLinks = document.getElementById('city').getElementsByTagName('a');
	for ( var i=0; i<cityLinks.length; i++ ) {
		cityLinks[i].count = i;
		cityLinks[i].onclick = function() {
			if ( this.className!='active' ) {
				for (var j=0; j<cityLinks.length; j++) {
					cityLinks[j].className='';
				}
				this.className = 'active';
				cityPhone.style.backgroundPosition = '50% -' + (48 * this.count) + 'px';
			}
			return false;
		}
	}
}
window.onload = init;