about = new Image();
about.src = "../images/about_over.gif";
blog = new Image();
blog.src = "../images/blog_over.gif";

function WriteLayer(ID,parentID,sText) { 
 if (document.layers) { 
   var oLayer; 
   if(parentID){ 
     oLayer = eval('document.' + parentID + '.document.' + ID + '.document'); 
   }else{ 
     oLayer = document.layers[ID].document; 
   } 
   oLayer.open(); 
   oLayer.write(sText); 
   oLayer.close(); 
 } 
 else if (parseInt(navigator.appVersion)>=5&&navigator.appName=="Netscape") { 
   document.getElementById(ID).innerHTML = sText; 
 } 
 else if (document.all) document.all[ID].innerHTML = sText 
}

function toggle_visibility(id) {
	var e;
	if( document.getElementById ) //standard
		e = document.getElementById(id);
	else if ( document.all ) //old msie
		e = document.all[id];
	else if ( document.layers ) //nn
		e = document.layers[id];
		
	if( e.style.display == 'none' )
		e.style.display = 'block';
	else
		e.style.display = 'none';
}

function toggle_content(id) {
	if( id == 'home' ) {
		show_div( 'homeContent' );
		hide_div( 'aboutContent' );
	}
	else if( id == 'about' ) {
		show_div( 'aboutContent' );
		hide_div( 'homeContent' );
	}
}

function show_div(id) {
	var e;
	if( document.getElementById ) //standard
		e = document.getElementById(id);
	else if ( document.all ) //old msie
		e = document.all[id];
	else if ( document.layers ) //nn
		e = document.layers[id];
		
	e.style.display = 'block';
}

function hide_div(id) {
	var e;
	if( document.getElementById ) //standard
		e = document.getElementById(id);
	else if ( document.all ) //old msie
		e = document.all[id];
	else if ( document.layers ) //nn
		e = document.layers[id];
		
	e.style.display = 'none';
}