// JavaScript Document

//global variables
var img_path = "images/";

function get_element_id( element_id ) {
	var elem, vis;
	if( document.getElementById ) // this is the way the standards work
		elem = document.getElementById( element_id );
	else if( document.all ) // this is the way old msie versions work
		elem = document.all[element_id];
	else if( document.layers ) // this is the way nn4 works
		elem = document.layers[element_id];
	return elem;
}

function show_element( element_id, visable) {
	// visable: true=on, false=off
	var elem;
	elem = get_element_id( element_id );
	if( visable==true )
		elem.style.display = 'block';
	else
		elem.style.display = 'none';
}

jQuery.preloadImages = function() {
	for(var i = 0; i<arguments.length; i++) {
		jQuery("<img>").attr("src", arguments[i]);
	}
}

function rollover(name, filename)
{
  document.images[name].src = img_path + filename;
}

Date.prototype.getRealYear = function() 
{ 
    if(this.getFullYear)
        return this.getFullYear();
    else
        return this.getYear() + 1900; 
};

function set_copyright() {
	var now = new Date();
	document.getElementById('footer_left').innerHTML = 'Copyright \&copy; ' + now.getRealYear() + ' Carl Amoth Photography. All rights reserved.';
}