function storeCursorPosition(text)
{
    //document.selection.createRange().duplicate() 
    //=> Get a duplicate of the current text range (store in text.caretPos)
    
    if (typeof(text.createTextRange) != "undefined")
        text.caretPos = document.selection.createRange().duplicate();

}

function SmileIT(smile,textarea){
    // Attempt to create a text range (IE).
    if (typeof(textarea.caretPos) != "undefined" && textarea.createTextRange)
    {
		//caretPos => cursor position
		//caretPos.text => selected text 
		var caretPos = textarea.caretPos;

        caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? smile + ' ' : smile
        caretPos.select();
    }

	//Mozilla Version : 	
    else if (typeof(textarea.selectionStart) != "undefined")
    {
        //element.selectionStart and selectionEnd 
        //return position of start and ending text range
        
        var begin = textarea.value.substr(0, textarea.selectionStart);
        var end = textarea.value.substr(textarea.selectionEnd);
        var scrollPos = textarea.scrollTop;

		//we put the smile content on the midle of content.
        textarea.value = begin + smile + end;

        if (textarea.setSelectionRange)
        {
            textarea.focus();
            textarea.setSelectionRange(begin.length + smile.length, begin.length + smile.length);
        }
        textarea.scrollTop = scrollPos;
    }
    // Just put it on the end.
    else
    {
        textarea.value += smile;
        textarea.focus(textarea.value.length - 1);
    }
}

/*
function PopMoreSmiles(form,name) {
         link='moresmiles.php?form='+form+'&text='+name
         newWin=window.open(link,'moresmile','height=500,width=300,resizable=yes,scrollbars=yes');
         if (window.focus) {newWin.focus()}
}
*/

function BBTag(opentag, closetag, textarea)
{
    // Can a text range be created?
    if (typeof(textarea.caretPos) != "undefined" && textarea.createTextRange)
    {
        var caretPos = textarea.caretPos, temp_length = caretPos.text.length;

        caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? opentag + caretPos.text + closetag + ' ' : opentag + caretPos.text + closetag;

        if (temp_length == 0)
        {
            caretPos.moveStart("character", -closetag.length);
            caretPos.moveEnd("character", -closetag.length);
            caretPos.select();
        }
        else
            textarea.focus(caretPos);
    }
    // Mozilla text range wrap.
    else if (typeof(textarea.selectionStart) != "undefined")
    {
        var begin = textarea.value.substr(0, textarea.selectionStart);
        var selection = textarea.value.substr(textarea.selectionStart, textarea.selectionEnd - textarea.selectionStart);
        var end = textarea.value.substr(textarea.selectionEnd);
        var newCursorPos = textarea.selectionStart;
        var scrollPos = textarea.scrollTop;

        textarea.value = begin + opentag + selection + closetag + end;

        if (textarea.setSelectionRange)
        {
            if (selection.length == 0)
                textarea.setSelectionRange(newCursorPos + opentag.length, newCursorPos + opentag.length);
            else
                textarea.setSelectionRange(newCursorPos, newCursorPos + opentag.length + selection.length + closetag.length);
            textarea.focus();
        }
        textarea.scrollTop = scrollPos;
    }
    // Just put them on the end, then.
    else
    {
        textarea.value += opentag + closetag;
        textarea.focus(textarea.value.length - 1);
    }
}