function callAjax(componentName,functionName,argumentObject,successFunction,failFunction) {
	var ajaxCall = new ajax();
	var returnValue;
		if (typeof(successFunction) == 'function') {
			ajaxCall.setCallbackHandler(successFunction);
		}
		if (typeof(failFunction) == 'function') {
			ajaxCall.setErrorHandler(failFunction);
		}
		ajaxCall.setQueryFormat('row');
		returnValue = ajaxCall.ajaxCall(componentName,functionName,argumentObject);
	return returnValue;
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*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);
}


Array.prototype.findIdx = function(value){
	for (var i=0; i < this.length; i++) {
		if (this[i] == value) {
			return i;
		}
	}
}