/*
   function $(obj)
	{
	return document.getElementById(obj);
	}
*/
function menu ( obj )
	{
	if ( typeof (obj) == 'string' )  var obj = $(obj) ;
	obj.style.display = ( obj.style.display == 'none' ) ? 'block' : 'none' ;
	}


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);
}

function category_swich ( obj )
	{
	
		if ( obj.value == 'no' ) 
			{
			$('gallery').style.display = 'none' ;	
			$('gallery_desc').style.display = 'none' ;	
			}
		else	
			$('gallery').style.display = 'block' ;
		
		if ( obj.value == 'new' )
			{
				$('gallery_name').style.display = 'block';
				$('gallery_id').style.display = 'none';	
				$('gallery_desc').style.display = '' ;				
			}
		else if ( obj.value == 'old' )
			{
				$('gallery_name').style.display = 'none';
				$('gallery_id').style.display = 'block';	
				$('gallery_desc').style.display = 'none' ;				
			}		
		
		
	}