if (document.images) {

	//main menu-site

	var load = "no";

	//main menu-site

	img1off = new Image(); img1off.src = "img/mainmenu/1_off.gif";

	img2off = new Image(); img2off.src = "img/mainmenu/2_off.gif";

	img3off = new Image(); img3off.src = "img/mainmenu/3_off.gif";

	img4off = new Image(); img4off.src = "img/mainmenu/4_off.gif";



	img1on = new Image(); img1on.src = "img/mainmenu/1_on.gif";

	img2on = new Image(); img2on.src = "img/mainmenu/2_on.gif";

	img3on = new Image(); img3on.src = "img/mainmenu/3_on.gif";

	img4on = new Image(); img4on.src = "img/mainmenu/4_on.gif";



	load="yes";

}

function imageOff(imgName) {

	if (load == "yes") {

		if (document.images) {

			eval("document.images['img"+imgName+"'].src = img"+imgName + "off.src;");

		}

	}

}

function imageOn(imgName) {

	if (load == "yes") {



		if (document.images) {

			eval("document.images['img"+imgName+"'].src = img"+imgName + "on.src;");

		}

	}

}