if (document.images) { //preload navigation images
	var picpath	= "img/aktuell/"; //define image path location
	navpic0on	= new Image(); navpic0on.src = picpath+"head_aktuell_r2_c1_f2.gif";
	navpic1on	= new Image(); navpic1on.src = picpath+"head_aktuell_r2_c2_f2.gif";
	navpic2on	= new Image(); navpic2on.src = picpath+"head_aktuell_r2_c3_f2.gif";
	navpic3on	= new Image(); navpic3on.src = picpath+"head_aktuell_r2_c4_f2.gif";
	navpic4on	= new Image(); navpic4on.src = picpath+"head_aktuell_r2_c5_f2.gif";
	navpic5on	= new Image(); navpic5on.src = picpath+"head_aktuell_r2_c6_f2.gif";
	navpic6on	= new Image(); navpic6on.src = picpath+"head_aktuell_r2_c7_f2.gif";
	navpic7on	= new Image(); navpic7on.src = picpath+"head_aktuell_r2_c8_f2.gif";
	navpic8on	= new Image(); navpic8on.src = picpath+"head_aktuell_r2_c9_f2.gif";
	navpic0out	= new Image(); navpic0out.src = picpath+"head_aktuell_r2_c1.gif";
	navpic1out	= new Image(); navpic1out.src = picpath+"head_aktuell_r2_c2.gif";
	navpic2out	= new Image(); navpic2out.src = picpath+"head_aktuell_r2_c3.gif";
	navpic3out	= new Image(); navpic3out.src = picpath+"head_aktuell_r2_c4.gif";
	navpic4out	= new Image(); navpic4out.src = picpath+"head_aktuell_r2_c5.gif";
	navpic5out	= new Image(); navpic5out.src = picpath+"head_aktuell_r2_c6.gif";
	navpic6out	= new Image(); navpic6out.src = picpath+"head_aktuell_r2_c7.gif";
	navpic7out	= new Image(); navpic7out.src = picpath+"head_aktuell_r2_c8.gif";
	navpic8out	= new Image(); navpic8out.src = picpath+"head_aktuell_r2_c9.gif";
	
	//navpic98on	= new Image(); navpic98on.src = "img/unav/print_f2.gif";
	//navpic98out	= new Image(); navpic98out.src = "img/unav/print.gif";
	navpic99on	= new Image(); navpic99on.src = "img/unav/zurueck_f2.gif";
	navpic99out	= new Image(); navpic99out.src = "img/unav/zurueck.gif";	
}
function imgOn(imgName) { if (document.images) { document[imgName].src = eval(imgName + "on.src"); }} //MouseOverFunction
function imgOut(imgName) { if (document.images) { document[imgName].src = eval(imgName + "out.src"); }} //MouseOutFunction
function clearText(thefield){if (thefield.defaultValue==thefield.value) thefield.value = "";}