var name = "#content";
var rule  = "position: absolute;width:80%;left:12.5em;top:7.5em;background:#fff;color:#111;padding:2em 1em 1em 1em;";
var name1 = "#header";
var rule1s  = "position: absolute;left: 0;top: 0;width: 100%;height: 7.5em;padding-top: 10px;background: #c1daf0; background-image:url(./images/banner-short.jpg);background-repeat:no-repeat;";
var rule1l  = "position: absolute;left: 0;top: 0;width: 100%;height: 7.5em;padding-top: 10px;background: #c1daf0; background-image:url(./images/banner-long.jpg);background-repeat:no-repeat;";
var oSheet = document.styleSheets[0];

if ( screen.width < 1280 ) {

	if( oSheet.deleteRule ) oSheet.deleteRule(0);
	else if( oSheet.removeRule ) oSheet.removeRule(0);
	if( oSheet.insertRule ) oSheet.insertRule(name + " {" + rule +"}",0);
	else if( oSheet.addRule ) oSheet.addRule(name,rule,0);

	if( oSheet.deleteRule ) oSheet.deleteRule(1);
	else if( oSheet.removeRule ) oSheet.removeRule(1);
	if( oSheet.insertRule ) oSheet.insertRule(name1 + " {" + rule1s +"}",0);
	else if( oSheet.addRule ) oSheet.addRule(name1,rule1s,0);
}

if ( screen.width > 1280 ) {

	if( oSheet.deleteRule ) oSheet.deleteRule(1);
	else if( oSheet.removeRule ) oSheet.removeRule(1);
	if( oSheet.insertRule ) oSheet.insertRule(name1 + " {" + rule1l +"}",0);
	else if( oSheet.addRule ) oSheet.addRule(name1,rule1l,0);
}

function showCopy(m) {
	if (m == 0) document.getElementById("cpnote").style.display='none';
	else document.getElementById("cpnote").style.display='';
}

var pos = 1;
var poslrg = 1;
var pos1, max, max1, maxlrg;

function iterate(p,d) {
	var ps,mx,min;
	if ( p == 0 ) {
		ps  = pos;
		mx = max;
		min = 1;
	} else {
		ps = pos1;
		mx = max1;
		min = max + 1;
	}
	if (d == 0) {
		if ( ps == min ) return;
		show(p,ps - 1);
	}
	if (d == 1) {
		if ( ps == mx ) return;
		show(p,ps + 1);
	}
}

function show(p,n) {
	var id, np;
	if ( p == 0 ) {
		id = "g" + pos;
		pos = n;
	} else {
		id = "g" + pos1;
		pos1 = n;
	}
	document.getElementById(id).style.display='none';
	id = "g" + n;
	document.getElementById(id).style.display='';
}

function itlarge(d) {
	if (d == 0) {
		if ( poslrg == 1 ) return;
		poslrg--;
	}
	if (d == 1) {
		if ( poslrg == maxlrg ) return;
		poslrg++;
	}
	document.getElementById("enl").src = "./photos/" +poslrg + ".jpg";
}

function overview()  {
	document.getElementById("ov").style.display='none';
	document.getElementById("it").style.display='';
	document.getElementById("it1").style.display='';
	document.getElementById("h2a").style.display='';
	document.getElementById("h2b").style.display='';
	var s = Math.ceil(poslrg/4);
	if ( s > max ) {
		show(0,pos);
		show(1,s);
	} else {
		show(0,s);
		show(1,pos1);
	}
}

function enlarge(n) {
	document.getElementById("enl").src = "./photos/" +n+ ".jpg";
	poslrg = n;
	var id = "g" + pos;
	document.getElementById(id).style.display='none';
	id = "g" + pos1;
	document.getElementById(id).style.display='none';
	document.getElementById("it").style.display='none';
	document.getElementById("it1").style.display='none';
	document.getElementById("h2a").style.display='none';
	document.getElementById("h2b").style.display='none';
	document.getElementById("ov").style.display='';
}

function showTab(cl, op) {
	document.getElementById(cl).style.display='none';
	document.getElementById(op).style.display='';
}

function map() {
   	window.open("map.htm","help","width=725, height=770, status=yes, scrollbars=yes, resizable=yes");
   }