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// Wikipedia JavaScript support functions
// if this is true, the toolbar will no longer overwrite the infobox when you move the mouse over individual items
var noOverwrite=false;
var alertText;
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) {

tagOpen = unescape(tagOpen);
    tagClose = unescape(tagClose);

var txtarea = document.forms['mform1'].newcontent;

// 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 {
    	var copy_alertText=alertText;
    	var re1=new RegExp("\\$1","g");
    	var re2=new RegExp("\\$2","g");
    	copy_alertText=copy_alertText.replace(re1,sampleText);
    	copy_alertText=copy_alertText.replace(re2,tagOpen+sampleText+tagClose);
    	var text;
    	if (sampleText) {
    		text=prompt(copy_alertText);
    	} else {
    		text="";
    	}
    	if(!text) { text=sampleText;}
    	text=tagOpen+text+tagClose;
    	document.infoform.infobox.value=text;
    	// in Safari this causes scrolling
    	if(!is_safari) {
    		txtarea.focus();
    	}
    	noOverwrite=true;
    }
    // reposition cursor if possible
    if (txtarea.createTextRange) txtarea.caretPos = document.selection.createRange().duplicate();
}