function droite() 
	{
	value = parseInt(document.form.p_gauche.value) + 2 ;
	document.images["collerette"].style.marginLeft = value+"px";
	document.form.p_gauche.value = value;
	}
function gauche() 
	{
	value = parseInt(document.form.p_gauche.value) - 2 ;
	document.images["collerette"].style.marginLeft = value+"px";
	document.form.p_gauche.value = value;
	}
function haut() 
	{
	value = parseInt(document.form.p_top.value) - 2 ;
	document.images["collerette"].style.marginTop = value+"px";
	document.form.p_top.value = value;
	}
function bas() 
	{
	value = parseInt(document.form.p_top.value) + 2 ;
	document.images["collerette"].style.marginTop = value+"px";
	document.form.p_top.value = value;
	}
function change_collerette(img) 
	{
	document.images["collerette"].src = "interface/collerettes/"+img+".png";
	document.form.image.value = img;
	}
function zoom(lezoom) 
	{
	if (lezoom == 100)
		{
		document.images["collerette"].width = "300"; 
		document.images["collerette"].height = "300";
		document.images["collerette"].style.marginLeft = "0px"; 
		document.images["collerette"].style.marginTop = "0px"; 
		document.form.taille.value = "300";
		document.form.p_gauche.value = "0";
		document.form.p_top.value = "0";
		}
	if (lezoom == 90)
		{
		document.images["collerette"].width = "270"; 
		document.images["collerette"].height = "270";
		document.images["collerette"].style.marginLeft = "15px"; 
		document.images["collerette"].style.marginTop = "15px"; 
		document.form.taille.value = "270";
		document.form.p_gauche.value = "15";
		document.form.p_top.value = "15";
		}
	if (lezoom == 80)
		{
		document.images["collerette"].width = "240"; 
		document.images["collerette"].height = "240";
		document.images["collerette"].style.marginLeft = "30px"; 
		document.images["collerette"].style.marginTop = "30px"; 
		document.form.taille.value = "240";
		document.form.p_gauche.value = "30";
		document.form.p_top.value = "30";
		}
	if (lezoom == 70)
		{
		document.images["collerette"].width = "210"; 
		document.images["collerette"].height = "210";
		document.images["collerette"].style.marginLeft = "45px"; 
		document.images["collerette"].style.marginTop = "45px"; 
		document.form.taille.value = "210";
		document.form.p_gauche.value = "45";
		document.form.p_top.value = "45";
		}
	if (lezoom == 60)
		{
		document.images["collerette"].width = "180"; 
		document.images["collerette"].height = "180";
		document.images["collerette"].style.marginLeft = "60px"; 
		document.images["collerette"].style.marginTop = "60px"; 
		document.form.taille.value = "180";
		document.form.p_gauche.value = "60";
		document.form.p_top.value = "60";
		}
	if (lezoom == 50)
		{
		document.images["collerette"].width = "150"; 
		document.images["collerette"].height = "150";
		document.images["collerette"].style.marginLeft = "75px"; 
		document.images["collerette"].style.marginTop = "75px"; 
		document.form.taille.value = "150";
		document.form.p_gauche.value = "75";
		document.form.p_top.value = "75";
		}
	if (lezoom == 40)
		{
		document.images["collerette"].width = "120"; 
		document.images["collerette"].height = "120";
		document.images["collerette"].style.marginLeft = "90px"; 
		document.images["collerette"].style.marginTop = "90px"; 
		document.form.taille.value = "120";
		document.form.p_gauche.value = "90";
		document.form.p_top.value = "90";
		}
	if (lezoom == 30)
		{
		document.images["collerette"].width = "90"; 
		document.images["collerette"].height = "90";
		document.images["collerette"].style.marginLeft = "105px"; 
		document.images["collerette"].style.marginTop = "105px"; 
		document.form.taille.value = "90";
		document.form.p_gauche.value = "105";
		document.form.p_top.value = "105";
		}
	if (lezoom == 20)
		{
		document.images["collerette"].width = "60"; 
		document.images["collerette"].height = "60";
		document.images["collerette"].style.marginLeft = "120px"; 
		document.images["collerette"].style.marginTop = "120px"; 
		document.form.taille.value = "60";
		document.form.p_gauche.value = "120";
		document.form.p_top.value = "120";
		}
	}