function init() {
	var bw = new browser();
	
	if(!bw.isCookies()){
		document.getElementById("nocookies").style.display = "block";	
		return false;
	}
	if(document.forms[0])
		document.forms[0].elements[0].focus();
}

function cleanFields(){
	document.forms[0].elements[0] = "";
	document.forms[0].elements[1]= "";
	document.forms[0].elements[1].focus();
}

function browser(){
	var cookies = true;
	this.isCookies = function () { return navigator.cookieEnabled; }
}

function isNumeric(num){ return (isNaN(parseFloat(num)) ? false : ((num.length > 0) ? true : false)); }