var win = null;
function fenetre(mypage,myname,w,h,scroll,no)
{
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	settings = 'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable='+no+''
	win = window.open(mypage,myname,settings)
	if(win.window.focus){win.window.focus();}
}

var imgNbr = parseInt(Math.random()*6);
var randomImg = '<img src="css/photo_navi_'+imgNbr+'.jpg" alt="photo" />';

function clearText(thefield) {
	if (thefield.defaultValue==thefield.value)
	thefield.value = ""
}



function toggleVisibility(id) {
	e = document.getElementById(id);
	if (e.style.visibility == "visible") {
		e.style.display = "none";
		e.style.visibility = "hidden";
	} else {
		e.style.display = "block";
		e.style.visibility = "visible";
	}
	
}



function hideAll() {

 document.getElementById('1').style.display = "none";
 document.getElementById('2').style.display = "none";
 document.getElementById('3').style.display = "none";
 document.getElementById('4').style.display = "none";
 document.getElementById('5').style.display = "none";
 document.getElementById('6').style.display = "none";
 document.getElementById('7').style.display = "none";
 document.getElementById('8').style.display = "none";
 document.getElementById('9').style.display = "none";
 document.getElementById('10').style.display = "none";
 document.getElementById('11').style.display = "none";

 document.getElementById('1').style.visiblity = "hidden";
 document.getElementById('2').style.visiblity = "hidden";
 document.getElementById('3').style.visiblity = "hidden";
 document.getElementById('4').style.visiblity = "hidden";
 document.getElementById('5').style.visiblity = "hidden";
 document.getElementById('6').style.visiblity = "hidden";
 document.getElementById('7').style.visiblity = "hidden";
 document.getElementById('8').style.visiblity = "hidden";
 document.getElementById('9').style.visiblity = "hidden";
 document.getElementById('10').style.visiblity = "hidden";
 document.getElementById('11').style.visiblity = "hidden";
}

function hideSpecs() {
 document.getElementById('a').style.display = "none";
 document.getElementById('b').style.display = "none";
 document.getElementById('c').style.display = "none";
 document.getElementById('d').style.display = "none";
 document.getElementById('e').style.display = "none";

 document.getElementById('a').style.visiblity = "hidden";
 document.getElementById('b').style.visiblity = "hidden";
 document.getElementById('c').style.visiblity = "hidden";
 document.getElementById('d').style.visiblity = "hidden";
 document.getElementById('e').style.visiblity = "hidden";

 document.getElementById('linka').style.color = "#B00F15";
 document.getElementById('linkb').style.color = "#B00F15";
 document.getElementById('linkc').style.color = "#B00F15";
 document.getElementById('linkd').style.color = "#B00F15";
 document.getElementById('linke').style.color = "#B00F15";
 
}



function togvis(id) {
	e = document.getElementById(id);
	e.style.display = "block";
	e.style.visibility = "visible";
	
}

function hideArtists() {
 document.getElementById('elizabeth').style.display = "none";
 document.getElementById('mark').style.display = "none";
 document.getElementById('joseph').style.display = "none";
 document.getElementById('ollie').style.display = "none";
 document.getElementById('dave').style.display = "none";
 document.getElementById('lili').style.display = "none";
 document.getElementById('bobby').style.display = "none";

 document.getElementById('elizabeth').style.visiblity = "hidden";
 document.getElementById('mark').style.visiblity = "hidden";
 document.getElementById('joseph').style.visiblity = "hidden";
 document.getElementById('ollie').style.visiblity = "hidden";
 document.getElementById('dave').style.visiblity = "hidden";
 document.getElementById('lili').style.visiblity = "hidden";
 document.getElementById('bobby').style.visiblity = "hidden";
}

function show2(id) {
	e = document.getElementById(id);
	e.style.display = "block";
	e.style.visibility = "visible";
 l = document.getElementById('link'+id);
 if(l) {
  l.style.color = "#0A4C7E";
 }
}

function hide2(id) {
	e = document.getElementById(id);
	e.style.display = "none";
	e.style.visibility = "hidden";
}

function rosette(f) { 
	var field = document.getElementById(f);
	if(eval(field.value)>=1) {
		field.value=0; 
	}
} 
function more(f) { 
	var field = document.getElementById(f);
	field.value++; 
} 
function less(f) { 
	var field = document.getElementById(f);
	if(eval(field.value)>=1) {
		field.value--; 
	}
} 
function updateField(field,value) { 
	document.forms["mainform"].elements[field].value=value;
}