function createCookie(name,value,days) { 
	if (days) { 
		var date = new Date(); 
		date.setTime(date.getTime() + (days*24*60*60*1000)); 
		var expires = ";expires=" + date.toGMTString(); 
	} 
	else 
		var expires = ""; 
	document.cookie = name + "=" + value + expires + "; path=/"; 
} 

function readCookie(name) { 
	var nameEQ = name + "="; 
	var ca = document.cookie.split(';'); 
	for(var i=0;i < ca.length;i++) { 
		var c = ca[i]; 
		while (c.charAt(0)==' ') c = c.substring(1,c.length); 
		if (c.indexOf(nameEQ) == 0) 
			return c.substring(nameEQ.length,c.length); 
	} 
	return null; 
} 

function eraseCookie(name) { 
	createCookie(name,"",-1); 
}

function SetDefault(name, div){ 
	if(div == undefined)
		div = "lecteur";
	var strPos = readCookie(name);
	document.getElementById(div).scrollTop = strPos;
} 

function SetDivPosition(name, div){
	if(div == undefined)
		div = "lecteur";
	var intY = document.getElementById(div).scrollTop; 
	createCookie(name, intY, 30);
}