var img_expand  = '/images/btn_expand.gif';
var img_collapse = '/images/btn_collapse.gif';

(new Image(13,13)).src = img_expand;
(new Image(13,13)).src = img_collapse;

function toggle(name) {

	img = "i"+name;
	if (document.getElementById(name).style.visibility=="visible") {
		document.getElementById(name).style.visibility="hidden";
		document.getElementById(name).style.display="none";
		MM_swapImage(img,'',img_expand,1);
	}
	else {
		document.getElementById(name).style.visibility="visible";
		document.getElementById(name).style.display="block";
		MM_swapImage(img,'',img_collapse,1);
	}

}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_findObj(n, d) { //v3.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document); return x;
}

function goAge(selObj) {
	parent.location.href=selObj.options[selObj.selectedIndex].value;
}


function doPreview() {
	var postform = MM_findObj("postmessage");
	postform.action = "/trailtalk/preview.php";
	postform.submit();
}

function doPost() {
	var postform = MM_findObj("postmessage");
	postform.submit();
}

function validate_required(field,alerttxt) {
	with (field) {
		if (value==null||value=="") {
			alert(alerttxt);
			return false;
		} else {
			return true;
		}
	}
}

function validate_form(thisform) {
	with (thisform) {
		if (validate_required(body_message,"Message Required!")==false) {
			body_message.focus();
			return false;
		}
	}
}

function validate_report(thisform) {
	with (thisform) {
		if (validate_required(reason,"You need a reason to report this message!")==false) {
			reason.focus();
			return false;
		}
	}
}


function submitFlag(formName) {
	var reason = prompt('reason', '');
	formName.submit();
}


function showFlag(message) {
	document.getElementById('flag' + message).style.display = "block";
	document.getElementById('flag_link' + message).style.display = "none";
}