var ns6=document.getElementById&&!document.all

function restrictinput(maxlength,e,placeholder){
	if (window.event&&event.srcElement.value.length>=maxlength)
		return false
	else if (e.target&&e.target==eval(placeholder)&&e.target.value.length>=maxlength){
		var pressedkey=/[a-zA-Z0-9\.\,\/]/ 
		if (pressedkey.test(String.fromCharCode(e.which)))
			e.stopPropagation()
	}
}

function countlimit(maxlength,e,placeholder,thename){
	var theform=eval(placeholder)
	var lengthleft=maxlength-theform.value.length
	var placeholderobj=document.all? document.all[thename] : document.getElementById(thename)
	if (window.event||e.target&&e.target==eval(placeholder)){
		if (lengthleft<0)
			theform.value=theform.value.substring(0,maxlength)
		placeholderobj.innerHTML=lengthleft
	}
}

function displaylimit(thename, theid, thelimit){
	var theform = document.getElementById(theid)
	var lengthleft=thelimit-theform.value.length
	var limit_text='<b><span id="'+thename+'" style=\"margin-left:150px\">'+lengthleft+'<\/span><\/b> caractËres restants.'
	if (document.all||ns6)
		document.write(limit_text)
	if (document.all){
		eval(theform).onkeypress=function(){ return restrictinput(thelimit,event,theform)}
		eval(theform).onkeyup=function(){ countlimit(thelimit,event,theform,thename)}
	}
	else if (ns6){
		document.body.addEventListener('keypress', function(event) { restrictinput(thelimit,event,theform) }, true); 
		document.body.addEventListener('keyup', function(event) { countlimit(thelimit,event,theform,thename) }, true); 
	}	
}

function verif_CP(champ){
	var chiffres = new RegExp("[0-9]");
	var verif;
	var size=5;

	for(x = 0; x < champ.value.length; x++) {
		verif = chiffres.test(champ.value.charAt(x));
		if(verif == false){
			champ.value = champ.value.substr(0,x) + champ.value.substr(x+1,champ.value.length-x+1);
			x--;
		}
	}
	champ.value = champ.value.substr(0,5);
	if(champ.value.length == size)
		maj_ville(champ.value);
}

function maj_ville(cp) {
	new Ajax.Updater('ville_block', 'cp.xml.php', {asynchronous:true, postBody:"cp="+cp});
}