if (document.images) {
/* 	nav_image_1= new Image(70,120); nav_image_1.src="/images/home_f2.gif"; */
	nav_image_1= new Image(); nav_image_1.src="/images/n_home.gif";
	nav_image_1_on= new Image(); nav_image_1_on.src="/images/n_home_f2.gif";
	nav_image_2= new Image(); nav_image_2.src="/images/n_about.gif";
	nav_image_2_on= new Image(); nav_image_2_on.src="/images/n_about_f2.gif";
	nav_image_3= new Image(); nav_image_3.src="/images/n_news.gif";
	nav_image_3_on= new Image(); nav_image_3_on.src="/images/n_news_f2.gif";
	nav_image_4= new Image(); nav_image_4.src="/images/n_design.gif";
	nav_image_4_on= new Image(); nav_image_4_on.src="/images/n_design_f2.gif";
	nav_image_5= new Image(); nav_image_5.src="/images/n_prot.gif";
	nav_image_5_on= new Image(); nav_image_5_on.src="/images/n_prot_f2.gif";
	nav_image_6= new Image(); nav_image_6.src="/images/n_sub.gif";
	nav_image_6_on= new Image(); nav_image_6_on.src="/images/n_sub_f2.gif";
	nav_image_7= new Image(); nav_image_7.src="/images/n_contact.gif";
	nav_image_7_on= new Image(); nav_image_7_on.src="/images/n_contact_f2.gif";
	
	nav_image_8= new Image(); nav_image_8.src="/images/n2_mech.gif";
	nav_image_8_on= new Image(); nav_image_8_on.src="/images/n2_mech_f2.gif";
	nav_image_9= new Image(); nav_image_9.src="/images/n2_prot.gif";
	nav_image_9_on= new Image(); nav_image_9_on.src="/images/n2_prot_f2.gif";
	nav_image_10= new Image(); nav_image_10.src="/images/n2_sub.gif";
	nav_image_10_on= new Image(); nav_image_10_on.src="/images/n2_sub_f2.gif";
}
function imgover(imgName) {
	if (document.images) {
		imgOn=eval(imgName + "_on.src");
		document[imgName].src= imgOn;
	}
}
function imgoff(imgName) {
	if (document.images) {
		imgOff=eval(imgName + ".src");
		document[imgName].src= imgOff;
	}
}