function initMenu(){
	var as = document.getElementById('nav').getElementsByTagName('a');
	
	var classNumber = 1;
	
	var classNames=new Array()
	classNames[1]="one"
	classNames[2]="two"
	classNames[3]="three"
	classNames[4]="four"
	classNames[5]="five"
	
	for( i=0; i < as.length; i++ ){
		
		as[i].className = classNames[classNumber];
		
		if( classNumber == 4 ){
			classNumber = 0;
		}
		
		classNumber++;
		
	}
}