function navsLoad(){
	var navs_home = new Image();
	navs_home.src = "/images/navs_home_over.gif";
	var navs_about = new Image();
	navs_about.src = "/images/navs_about_over.gif";
	var navs_menu = new Image();
	navs_menu.src = "/images/navs_menu_over.gif";
	var navs_location = new Image();
	navs_location.src = "/images/navs_location_over.gif";
	var navs_column = new Image();
	navs_column.src = "/images/navs_column_over.gif";
}

function changeImages(){
	if(document.images){
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}