$(document).ready(function() {
  	
	$('#nav'+sel_page).animate({opacity:'1.00'}); 
	//$('#nav'+sel_page).animate({filter:'alpha(opacity:1.00}'}); 
});

function setPage(page)
{
  tmp = sel_page;
  sel_page = page;
  hover(tmp,false);
}

function hover(page, over)
{
  if(page != sel_page) {
		if(over) {
			$('#nav'+page).css({opacity:'0.90'}); 
		}
		else {
			$('#nav'+page).css({opacity:'0.50'}); 
		}
	}

}