function s_insertText(formname, elname, what) {
if (document.forms[formname].elements[elname].createTextRange) {
document.forms[formname].elements[elname].focus();
document.selection.createRange().duplicate().text = what;
} else if ((typeof document.forms[formname].elements[elname].selectionStart) != 'undefined') { // for Mozilla
var tarea = document.forms[formname].elements[elname];
var selEnd = tarea.selectionEnd;
var txtLen = tarea.value.length;
var txtbefore = tarea.value.substring(0,selEnd);
var txtafter = tarea.value.substring(selEnd, txtLen);
var oldScrollTop = tarea.scrollTop;
tarea.value = txtbefore + what + txtafter;
tarea.selectionStart = txtbefore.length + what.length;
tarea.selectionEnd = txtbefore.length + what.length;
tarea.scrollTop = oldScrollTop;
tarea.focus();
} else {
document.forms[formname].elements[elname].value += what;
document.forms[formname].elements[elname].focus();
}
}
function s_addText2(elname, wrap1, wrap2) {
	if (document.selection) { // for IE 
		var str = document.selection.createRange().text;
		document.forms['chatform'].elements[elname].focus();
		var sel = document.selection.createRange();
		sel.text = wrap1 + str + wrap2;
		return;
	} else if ((typeof document.forms['chatform'].elements[elname].selectionStart) != 'undefined') { // for Mozilla
		var txtarea = document.forms['chatform'].elements[elname];
		var selLength = txtarea.textLength;
		var selStart = txtarea.selectionStart;
		var selEnd = txtarea.selectionEnd;
		var oldScrollTop = txtarea.scrollTop;
		//if (selEnd == 1 || selEnd == 2)
		//selEnd = selLength;
		var s1 = (txtarea.value).substring(0,selStart);
		var s2 = (txtarea.value).substring(selStart, selEnd)
		var s3 = (txtarea.value).substring(selEnd, selLength);
		txtarea.value = s1 + wrap1 + s2 + wrap2 + s3;
		txtarea.selectionStart = s1.length;
		txtarea.selectionEnd = s1.length + s2.length + wrap1.length + wrap2.length;
		txtarea.scrollTop = oldScrollTop;
		txtarea.focus();
		return;
	} else {
		insertText(elname, wrap1 + wrap2);
	}