function getCookie(key) {
	var src = " " + document.cookie + ";";
	var i = j = 0;
	var len = src.length;
	
	while( i < len ){
		j = src.indexOf(";", i);
		var part = src.substring(i + 1, j);
		var k = part.indexOf("=");
		
		if ( part.substring(0, k) == key ){
			return( unescape(part.substring(k+1, j-i-1)) );
		}
		i = j + 1;
	}
	return("");
}

function setCookie(key, val){
	var result = key + "=" + escape(val) + "; ";
	result += "expires=Fri, 31-Dec-2030 23:59:59; ";
	
	document.cookie = result;
}

function clearCookie(key) {
	document.cookie = key + "=" + "xx; expires=1-Jan-1997 00:00:00;";
}