function getSel(whatElement,what)
{
	var txt = '';
	var foundIn = '';
	if (window.getSelection)
	{
		txt = window.getSelection();
	}
	else if (document.getSelection)
	{
		txt = document.getSelection();
	}
	else if (document.selection)
	{
		txt = document.selection.createRange().text;
	}
	else return;
	
	if(what=="bold"){
	 doBold(whatElement,txt)
	} else if(what=="italic"){
	 doItalic(whatElement,txt)
	}
}

function doBold(whatElement,txt){
 var x = "<b>" + txt + "</b>";
 var s = document.getElementById(whatElement).value;
 s = s.replace(txt,x);
 document.getElementById(whatElement).value = s;
}

function doItalic(whatElement,txt){
 var x = "<i>" + txt + "</i>";
 var s = document.getElementById(whatElement).value;
 s = s.replace(txt,x);
 document.getElementById(whatElement).value = s;
}