function comparer(limiteComparateur, msgTropArticles, msgPasMemeFamille, msgPasSelection, idCateg, nameCookieArticles, nameCookieInfos, urlComparateur){ 
	var listeIdArticleChecked = ''; 
	var choix = document.comparateur.checkComparateur; 
	var memeFamille = true;
	var premierChecked = true;
	var familleAvant = '';
	var famille = '';
	var nbChecked = 0;
	for (i = 0; i < choix.length; i++){ 
		if(choix[i].checked){ 
			nbChecked = nbChecked + 1;
			var valueChoix = choix[i].value; 	
			var index = valueChoix.indexOf('_', 0); 	
			var idArticle = valueChoix.substring(0, index); 
			if(valueChoix.length>index+1){ 
				famille = valueChoix.substring(index+1); 
			}else{
				famille = ''; 
			}
			if(!premierChecked){
				if(familleAvant!=famille){ 
					memeFamille = false; 
				} 
			} 
			listeIdArticleChecked = listeIdArticleChecked+','+idArticle; 
			premierChecked = false;
			familleAvant = famille; 
		}
	}
	if(nbChecked<2){
		alert(msgPasSelection); 
	}else if(limiteComparateur!=null && limiteComparateur!="" && nbChecked>limiteComparateur){
		alert(msgTropArticles); 
	}else if(!memeFamille){
		alert(msgPasMemeFamille); 
	}else{
		deleteCookie(nameCookieArticles, '/');
		setCookie(nameCookieArticles, escape(listeIdArticleChecked), null, '/');
		deleteCookie(nameCookieInfos, '/');
		setCookie(nameCookieInfos, escape(idCateg+','+famille), null, '/');
		document.location.href=urlComparateur; 
	}
}