function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

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

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		button_home_over = newImage("<?php bloginfo('template_url') ?>/images/button_home-over.gif");
		missie_over = newImage("<?php bloginfo('template_url') ?>/images/missie-over.gif");
		button_e_over = newImage("<?php bloginfo('template_url') ?>/images/button_e-over.gif");
		button_fb_over = newImage("<?php bloginfo('template_url') ?>/images/button_fb-over.gif");
		button_m_over = newImage("<?php bloginfo('template_url') ?>/images/button_m-over.gif");
		button_rss_over = newImage("<?php bloginfo('template_url') ?>/images/button_rss-over.gif");
			microblog_all_over = newImage("<?php bloginfo('template_url') ?>/images/microblog_all-over.gif");
		microblog_twitter_over = newImage("<?php bloginfo('template_url') ?>/images/microblog_twitter-over.gif");
		preloadFlag = true;
	}
}