{
        btn1On = new Image()
        btn1On.src ="images/en_sm1-systeme-integree-off.gif"
        btn1Off = new Image()
        btn1Off.src ="images/en_sm1-systeme-integree.gif"   
		
		btn2On = new Image()
        btn2On.src ="images/en_sm2-donnees-aux-frais-off.gif"
        btn2Off = new Image()
        btn2Off.src ="images/en_sm2-donnees-aux-frais.gif" 
		
		btn3On = new Image()
        btn3On.src ="images/en_sm3-pepins-off.gif"
        btn3Off = new Image()
        btn3Off.src ="images/en_sm3-pepins.gif"
		
		btn4On = new Image()
        btn4On.src ="images/en_sm4-sans-frais-off.gif"
        btn4Off = new Image()
        btn4Off.src ="images/en_sm4-sans-frais.gif"  
		
		btn5On = new Image()
        btn5On.src ="images/en_sm5-extraction-des-donnees-off.gif"
        btn5Off = new Image()
        btn5Off.src ="images/en_sm5-extraction-des-donnees.gif" 
		
		btn6On = new Image()
        btn6On.src ="images/en_sm6-off.gif"
        btn6Off = new Image()
        btn6Off.src ="images/en_sm6-.gif"  
		
		btn7On = new Image()
        btn7On.src ="images/en_m1-abonner-gratuitement-off.gif"
        btn7Off = new Image()
        btn7Off.src ="images/en_m1-abonner-gratuitement.gif"  
		
		btn8On = new Image()
        btn8On.src ="images/en_m2-conference-vitaminee-off.gif"
        btn8Off = new Image()
        btn8Off.src ="images/en_m2-conference-vitaminee.gif"  
		
		btn9On = new Image()
        btn9On.src ="images/en_m3-comprarer-off.gif"
        btn9Off = new Image()
        btn9Off.src ="images/en_m3-comprarer.gif"  
		                             
}

function switchOn(imageName) {
  if (document.images)
     document.images[imageName].src = eval(imageName + 'On.src');
}
                 
function switchOff(imageName) {
  if (document.images)
     document.images[imageName].src = eval(imageName + 'Off.src');
}


var popupWin = null;
	
function openWindow(url,WIDTH,HEIGHT) {

	TOP = (screen.height/2) - ( HEIGHT/2);
	LEFT = (screen.width/2) - ( WIDTH/2);
		
	url;
		
	if(!popupWin || popupWin.closed){
		popupWin = window.open( url , 'cplt', 'scrollbars=yes,top = ' + TOP + ',left = ' + LEFT + ',resizable=0,width=' + WIDTH + ',height=' + HEIGHT)
		popupWin.focus();
	} else {
		popupWin.close();
		openWindow(url ,WIDTH,HEIGHT);
	}
}