if (document.images) {
		hpoff = new Image
		hpover = new Image
		tsoff = new Image
		tsover = new Image
		prooff = new Image
		proover = new Image
		wcoff = new Image
		wcover = new Image
		auoff = new Image
		auover = new Image
		paroff = new Image
		parover = new Image
		isooff = new Image
		isoover = new Image
		vrwoff = new Image
		vrwover = new Image
		cuoff = new Image
		cuover = new Image

		hpoff.src = "img/hp_off.gif"
		hpover.src = "img/hp_on.gif"
		tsoff.src = "img/ts_off.gif"
		tsover.src = "img/ts_on.gif"
		prooff.src = "img/pro_off.gif"
		proover.src = "img/pro_on.gif"
		wcoff.src = "img/wc_off.gif"
		wcover.src = "img/wc_on.gif"
		auoff.src = "img/au_off.gif"
		auover.src = "img/au_on.gif"
		paroff.src = "img/par_off.gif"
		parover.src = "img/par_on.gif"
		isooff.src = "img/iso_off.gif"
		isoover.src = "img/iso_on.gif"
		vrwoff.src = "img/vrw_off.gif"
		vrwover.src = "img/vrw_on.gif"
		cuoff.src = "img/cu_off.gif"
		cuover.src = "img/cu_on.gif"
	}
	else {
		hpoff = ""
		hpover = ""
		tsoff = ""
		tsover = ""
		prooff = ""
		proover = ""
		wcoff = ""
		wcover = ""
		auoff = ""
		auover = ""
		paroff = ""
		parover = ""
		isooff = ""
		isoover = ""
		vrwoff = ""
		vrwover = ""
		cuoff = ""
		cuover = ""
		document.hp = ""
		document.ts = ""
		document.pro = ""
		document.wc = ""
		document.au = ""
		document.par = ""
		document.iso = ""
		document.vrw = ""
		document.cu = ""
	}