function get(string){
	if(document.getElementById(string)){
		return document.getElementById(string);
	}else{
		return false;
	}
}

function loadParam(string, gap){
	if(string==""){
		return false;
	}else{
		params = string.split(gap);
		for(i=0;i<params.count();i++){
			alert(params.count+" - "+params[i]);
		}
	}
}

function renderParam(string, gap){
}

function createCookie(name,value,seconds) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(seconds*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}

function cbAll(){
	var firsti = get("firsti").value;
	var lasti = get("lasti").value;
	if(get("cball").checked)
		get("cball").alt = get("cball").title = "Deselect all";
	else
		get("cball").alt = get("cball").title = "Select all";
	for(i = firsti; i < lasti; i++){
		get("cb"+i).checked = get("cball").checked;
	}
}