function comparerProduits(nbProds){
	nbProds = document.getElementById("nbToCompare").value;
	var nbMax = 5;
	var toCheck = new Array();
	var ids="";
	for(iii=1;iii<=nbProds;iii++){
		if(document.getElementById("compare_"+iii).checked){
			toCheck.push(document.getElementById("compare_"+iii).value);
		}
			
	}
	if(toCheck.length>nbMax || toCheck.length<2){
			alert("Nombre de produit cochés incorrects. \n Veuillez cocher entre 2 et "+nbMax+" produits maximum.");
	}
	else{
		for(j=0;j<toCheck.length;j++){
			ids+=""+toCheck[j];
			if(j!=toCheck.length-1)
				ids+=",";
		}
		Modalbox.show('compare.php?ids='+ids, {width: eval(eval((screen.width)/1.066))/*, height:eval(eval((screen.height)/1.365))*/, top:25})
	}
	}