// browser detection
	var myAgent   = navigator.userAgent.toLowerCase();
	var myVersion = parseInt(navigator.appVersion);
	var is_ie   = ((myAgent.indexOf("msie") != -1)  && (myAgent.indexOf("opera") == -1));
	var is_win   =  ((myAgent.indexOf("win")!=-1) || (myAgent.indexOf("16bit")!=-1));

	function addSmiley(smiley,id)
	{
		var msg = document.getElementById(id);

		if(msg != null)
		{
			addText(smiley, "", false,msg);
		}
	}

	function addText(theTag, theClsTag, isSingle, message)
	{
		var isClose = false;
		var set=false;
		var old=false;
		var selected="";

		if(navigator.appName=="Netscape" &&  message.textLength>=0 ) { // mozilla, firebird, netscape
			if(theClsTag!="" && message.selectionStart!=message.selectionEnd) {
				selected=message.value.substring(message.selectionStart,message.selectionEnd);
				str=theTag + selected+ theClsTag;
				old=true;
				isClose = true;
			}
			else {
				str=theTag;
			}

			message.focus();
			start=message.selectionStart;
			end=message.textLength;
			endtext=message.value.substring(message.selectionEnd,end);
			starttext=message.value.substring(0,start);
			message.value=starttext + str + endtext;
			message.selectionStart=start;
			message.selectionEnd=start;

			message.selectionStart = message.selectionStart + str.length;

			if(old) { return false; }

			set=true;

			if(isSingle) {
				isClose = false;
			}
		}
		if ( (myVersion >= 4) && is_ie && is_win) {  // Internet Explorer
			if(message.isTextEdit) {
				message.focus();
				var sel = document.selection;
				var rng = sel.createRange();
				rng.colapse;
				if((sel.type == "Text" || sel.type == "None") && rng != null){
					if(theClsTag != "" && rng.text.length > 0)
						theTag += rng.text + theClsTag;
					else if(isSingle)
						isClose = true;

					rng.text = theTag;
				}
			}
			else{
				if(isSingle) isClose = true;

				if(!set) {
						message.value += theTag;
					}
			}
		}
		else
		{
			if(isSingle) isClose = true;

			if(!set) {
					message.value += theTag;
				}
		}
		message.focus();

		return isClose;
	}



function change_type_list(obj,tree)
{
	var tree_obj = document.getElementById(tree);

	tree_obj.style.display = (obj.value == "move" ? "" : "none");

}

function highlight(field) {
        field.focus();
        field.select();
}