String.prototype.rot13 = function()
{ //v1.0
	return this.replace(/[a-zA-Z]/g, function(c) {
		return String.fromCharCode( (c <= "Z" ? 90 : 122) >= (c = c.charCodeAt(0) + 13) ? c : c - 26);
	});
};

function rot13( string )
{
	return string.rot13();
}

function files(field,type)
{
	if (type==1)
	{
		type=3;
	}
	else
	{
		type=4;
	}
	window.open('/adm/select_files.php?field=' + field + '&type=' + type ,'files','width=300, height=400,history=no,resizable=yes,status=no,scrollbars=yes,menubar=no');
}

function textCounter(field, countfield, maxlimit, limit)
{
	if (field.value.length > maxlimit)
	{
		if( limit == 1 )
		{
			field.value = field.value.substring(0, maxlimit);
		}
	}

	countfield.value = maxlimit - field.value.length;
}

var link;
var fieldInProgress;
var formInProgress;
var target;
function setHTMLtags(field,type,form)
{
	eval("targetField=document.forms."+form+"."+field);
	if(type==1)
	{
		var start="<b>";
		var end="</b>";
	}
	else if(type==2)
	{
		var start="<i>";
		var end="</i>";
	}
	else if(type==3)
	{
		var start="<u>";
		var end="</u>";
	}
	else if(type==4)
	{
		if (link)
		{
			var start='<a href="'+link+'" target="'+target+'">';
			var end='</a>';
		}
		else
		{
			var start='';
			var end='';
		}
	}
	if(document.selection)
	{
		var selectedText = document.selection.createRange();
		if(selectedText.text.length>0)
		{
			selectedText.text=start + selectedText.text + end;
		}
	}
	else if (targetField.selectionStart || targetField.selectionStart == '0')
	{
		var startPos = targetField.selectionStart;
		var endPos = targetField.selectionEnd;
		if(startPos!=endPos)
		{
			targetField.value = targetField.value.substring(0, startPos)
					  + start +  targetField.value.substring(startPos, endPos) + end
					  + targetField.value.substring(endPos, targetField.value.length);
		}
	}
}

function setEditorPageLink(field,type,form)
{
	fieldInProgress = field;
	formInProgress = form;
	//usage = confirm("Create link to editor-page by clicking ok or create external link by clicking cancel");
	//if (usage)
	//{
	//	files('dhtmlLinking',0);
	//}
	//else
	//{
		link = prompt('Enter URL:','http://');
		target = "_blank";
		setHTMLtags(fieldInProgress,4,formInProgress);
	//}
}

function wakeDialog(linkFromSelection)
{
	link = linkFromSelection;
	target = "_self";
	setHTMLtags(fieldInProgress,4,formInProgress);
	fieldInProgress = "";
	formInProgress = "";
}

function search_click(text,id)
{
	el = document.getElementById(id);
	if (el.value == text)
	{
		el.value = "";
	}
}
function search_unclick(text,id)
{
	el = document.getElementById(id);
	if (el.value == "")
	{
		el.value = text;
	}
}