function hov(el) {
	var photos=document.getElementById('nav_p').getElementsByTagName('li');
	var links=document.getElementById('nav_main').getElementsByTagName('li');
	if (el.parentNode.id=="nav_main") {
			for (i=0; i<links.length; i++) {
				if (links[i]==el) {
					var link=links[i];
				}
			}	
		}
	if (el.parentNode.id=="nav_p") {
			for (i=0; i<photos.length; i++) {
				if (photos[i]==el) {
					var link=links[i];
				}
			}	
		}
	var rE = new RegExp("hover");
	if (link.currentStyle) {
	var curImage=link.currentStyle.backgroundImage;	
	}
	else {
	var curImage=window.getComputedStyle(link,null).backgroundImage;
	}
	if (!rE.test(link.style.backgroundImage)) {
		link.style.backgroundImage=curImage.replace(/.jpg/,"_hover.jpg");
		}
		else {
		link.style.backgroundImage=curImage.replace(/_hover/,"");
		}
	}	
	function hovInit() {
	var links=document.getElementById('nav_main').getElementsByTagName('li');
	var photos=document.getElementById('nav_p').getElementsByTagName('li');
	for (i=0; i<photos.length; i++) {
		photos[i].onmouseover=function() {hov(this);}
		photos[i].onmouseout=function() {hov(this);}	
		links[i].onmouseover=function() {hov(this);}
		links[i].onmouseout=function() {hov(this);}		
		}
	}
	window.onload=function() {
	window.defaultStatus='Christiaan Pretorius Studio - Home';
	hovInit();
	}