var clientPC = navigator.userAgent.toLowerCase(); // Get client info
var is_gecko = ((clientPC.indexOf('gecko')!=-1) && (clientPC.indexOf('spoofer')==-1)
	&& (clientPC.indexOf('khtml') == -1) && (clientPC.indexOf('netscape/7.0')==-1));
var is_safari = ((clientPC.indexOf('AppleWebKit')!=-1) && (clientPC.indexOf('spoofer')==-1));
var is_khtml = (navigator.vendor == 'KDE' || ( document.childNodes && !document.all && !navigator.taintEnabled ));
if (clientPC.indexOf('opera')!=-1) {
	var is_opera = true;
	var is_opera_preseven = (window.opera && !document.childNodes);
	var is_opera_seven = (window.opera && document.childNodes);
}
// apply tagOpen/tagClose to selection in textarea,
// use sampleText instead of selection if there is none
// copied and adapted from phpBB
function insertTags(tagOpen, tagClose, sampleText) {
	var txtarea = document.post.message;


	// IE
	if(document.selection  && !is_gecko) {
		var theSelection = document.selection.createRange().text;
		if(!theSelection) { theSelection=sampleText;}
		txtarea.focus();
		if(theSelection.charAt(theSelection.length - 1) == " "){// exclude ending space char, if any
			theSelection = theSelection.substring(0, theSelection.length - 1);
			document.selection.createRange().text = tagOpen + theSelection + tagClose + " ";
		} else {
			document.selection.createRange().text = tagOpen + theSelection + tagClose;
		}
	// Mozilla
	} else if(txtarea.selectionStart || txtarea.selectionStart == '0') {
		var startPos = txtarea.selectionStart;
		var endPos = txtarea.selectionEnd;
		var scrollTop=txtarea.scrollTop;
		var myText = (txtarea.value).substring(startPos, endPos);
		if(!myText) { myText=sampleText;}
		if(myText.charAt(myText.length - 1) == " "){ // exclude ending space char, if any
			subst = tagOpen + myText.substring(0, (myText.length - 1)) + tagClose + " ";
		} else {
			subst = tagOpen + myText + tagClose;
		}
		txtarea.value = txtarea.value.substring(0, startPos) + subst +
		txtarea.value.substring(endPos, txtarea.value.length);
		txtarea.focus();
		var cPos=startPos+(tagOpen.length+myText.length+tagClose.length);
		txtarea.selectionStart=cPos;
		txtarea.selectionEnd=cPos;
		txtarea.scrollTop=scrollTop;
	// All others
	} else {
		// can't insert inside, so insert at end ...
		txtarea.value += tagOpen + sampleText + tagClose ;
	}
	// reposition cursor if possible
	if (txtarea.createTextRange) txtarea.caretPos = document.selection.createRange().duplicate();
}

function setAntiSpamValue(value) {
	document.post.phorum_challenge.value = value ;
}

// this function generates the actual toolbar buttons with localized text
// we use it to avoid creating the toolbar where javascript is not enabled
function addButton(imageFile, speedTip, tagOpen, tagClose, sampleText) {
	speedTip=escapeQuotes(speedTip);
	tagOpen=escapeQuotes(tagOpen);
	tagClose=escapeQuotes(tagClose);
	sampleText=escapeQuotes(sampleText);
	var mouseOver="";
	// we can't change the selection, so we show example texts
	// when moving the mouse instead, until the first button is clicked
	if(!document.selection && !is_gecko) {
		// filter backslashes so it can be shown in the infobox
		var re=new RegExp("\\\\n","g");
		tagOpen=tagOpen.replace(re,"");
		tagClose=tagClose.replace(re,"");
	}

	document.write("<a href=\"javascript:insertTags");
	document.write("('"+tagOpen+"','"+tagClose+"','"+sampleText+"');\">");
	document.write("<img src=\""+imageFile+"\" border=\"0\" alt=\""+speedTip+"\" title=\""+speedTip+"\""+mouseOver+">");
	document.write("</a>");
	return;
}

function addInputButton(imageFile, speedTip, tagOpen, tagClose, sampleText, inputText) {
	speedTip=escapeQuotes(speedTip);
	tagOpen=escapeQuotes(tagOpen);
	tagClose=escapeQuotes(tagClose);
	sampleText=escapeQuotes(sampleText);
	var mouseOver="";
	// we can't change the selection, so we show example texts
	// when moving the mouse instead, until the first button is clicked
	if(!document.selection && !is_gecko) {
		// filter backslashes so it can be shown in the infobox
		var re=new RegExp("\\\\n","g");
		tagOpen=tagOpen.replace(re,"");
		tagClose=tagClose.replace(re,"");
	}
	document.write("<a href=\"javascript:author=prompt('"+inputText+"'); tagOpen='"+tagOpen+"'; tagOpen = tagOpen.replace(/%%/, author); insertTags(tagOpen,'"+tagClose+"','"+sampleText+"');\">");
	document.write("<img src=\""+imageFile+"\" border=\"0\" alt=\""+speedTip+"\" title=\""+speedTip+"\""+mouseOver+">");
	document.write("</a>");
	return;
}



function addInfobox(infoText,text_alert) {
	alertText=text_alert;
	var clientPC = navigator.userAgent.toLowerCase(); // Get client info
	var re=new RegExp("\\\\n","g");
	alertText=alertText.replace(re,"\n");
	// if no support for changing selection, add a small copy & paste field
	// document.selection is an IE-only property. The full toolbar works in IE and
	// Gecko-based browsers.
	if(!document.selection && !is_gecko) {
		infoText=escapeQuotesHTML(infoText);
		document.write("<form name='infoform' id='infoform'>"+
			"<input size=80 id='infobox' name='infobox' value=\""+
		infoText+"\" READONLY></form>");
	}
}

function escapeQuotes(text) {
	var re=new RegExp("'","g");
	text=text.replace(re,"\\'");
	re=new RegExp('"',"g");
	text=text.replace(re,'&quot;');
	re=new RegExp("\\n","g");
	text=text.replace(re,"\\n");
	return text;
}

function escapeQuotesHTML(text) {
	var re=new RegExp('"',"g");
	text=text.replace(re,"&quot;");
	return text;
}