// JavaScript Document
function initHeader() {
	
	//
	var i;
	var img = document.getElementById('header_links').getElementsByTagName('img');
	
	for ( i = 0; i < img.length; i++ ) {
		
		img[i].onmouseover = function() {
		
			document.getElementById( this.id ).src = './assets/' + this.id + '_over.gif';
			
		}
		
		img[i].onmouseout = function() {
		
			document.getElementById( this.id ).src = './assets/' + this.id + '.gif';
			
		}
		
	}
	
}

function initNav() {
	
	//
	var i;
	var img = document.getElementById('navigation').getElementsByTagName('img');
	
	for ( i = 0; i < img.length; i++ ) {
		
		img[i].onmouseover = function() {
		
			document.getElementById( this.id ).src = './assets/' + this.id + '_over.gif';
			
		}
		
		img[i].onmouseout = function() {
		
			document.getElementById( this.id ).src = './assets/' + this.id + '.gif';
			
		}
		
	}

}
	
window.onload = function() {
	
	initHeader();
	initNav();
	
}