function f_CollapseExpand(sCallerID) 
{
    var sContnerID = sCallerID + '_contner';    
    var state='';  
    var sHdearClass = '';
                 
    var o = document.getElementById(sContnerID);    
    if (o == null)
        return;	
        
    if (o.open == null)
    {
		state = 'none'; 
		o.open = true;
		sHdearClass = 'expand';
    }  
	else if (o.open)
	{ 
		state = 'block';
		o.open = false;
 		sHdearClass = 'collapse';  
	} 
	else if (!o.open)
	{ 
		state = 'none'; 
		o.open = true;
		sHdearClass = 'expand';   
	}	
	
	
	if (document.all)//IS IE 4 or 5 (or 6 beta) 
	{ 
		eval( "document.all." + sContnerID + ".style.display = state"); 
		eval( "document.all." + sCallerID + ".className = '" + sHdearClass + "'"); 
	} 
	if (document.layers)//IS NETSCAPE 4 or below 
	{ 
		document.layers[sContnerID].display = state; 
		document.layers[sContnerID].className = sHdearClass;		
	} 
	if (document.getElementById &&!document.all)
	{ 
		document.getElementById(sContnerID).style.display = state; 
		document.getElementById(sCallerID).className = sHdearClass; 
	}  
	
	createCookie(sCallerID, sHdearClass, 30);
}

function f_SetCollapseExpane(sCallerID)
{
    var sHdearClass = readCookie(sCallerID);    
    if (sHdearClass == null)
        sHdearClass = 'expand';
        
    var sContnerID = sCallerID + '_contner';         
    var o = document.getElementById(sContnerID);    
    if (o == null)
        return;	
    
  
    var state=''; 

	if (sHdearClass == 'collapse')
	{
	    state = 'block';
		o.open = false;	
	}
	else
	{
	    state = 'none'; 
		o.open = true;
	}	
	
	if (document.all)//IS IE 4 or 5 (or 6 beta) 
	{ 
		eval( "document.all." + sContnerID + ".style.display = state"); 
		eval( "document.all." + sCallerID + ".className = '" + sHdearClass + "'"); 
	} 
	if (document.layers)//IS NETSCAPE 4 or below 
	{ 
		document.layers[sContnerID].display = state; 
		document.layers[sContnerID].className = sHdearClass;		
	} 
	if (document.getElementById &&!document.all)
	{ 
		document.getElementById(sContnerID).style.display = state; 
		document.getElementById(sCallerID).className = sHdearClass; 
	} 
}

function f_SetFilerState()
{
    f_SetCollapseExpane('comment_form');
}




/*----Cookies-------------------------------------------------------*/

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);
}