function getCookie( name ){
	var cookie = new String( document.cookie );
	cookie = cookie.split("; ");
	for( i=0; i<cookie.length; i++){
		var c_c = cookie[i].split("=");
		if( c_c[0]==name ){
			if(c_c.length==2)
				return c_c[1];
			else
				return "";
		}
	}
	return "";
}
function setCookie( name, value ){
	var date=new Date();
	deleteCookie( name );
	date.setDate(date.getDate() + 1); 
	document.cookie = name + "=" + value + "; expires=" + date.toGMTString() + "; path=/;";
}
function deleteCookie( name ){
	var date= new Date(1970,0,1);
	document.cookie = name + "=1; expires=" + date.toGMTString();
}