function myGetElementById (id)
	{
		var itm = false;
		if(window.document.getElementById)
			itm = window.document.getElementById(id);
		else if(window.document.all)
			itm = window.document.all[id];
		else if(window.document.layers)
			itm = window.document.layers[id];
		return itm;
	}
	
	function swapImage(id_btn, newsrc) 
	{
		img = myGetElementById(id_btn);
		if (img) 
		{
			img.src = newsrc;
		}
	}
	
	function makeBold(fld) 
	{
		fld = myGetElementById(fld);
		val = fld.value;
		part1 = val.substring(0, fld.selectionStart);
		part2 = val.substring(fld.selectionStart, fld.selectionEnd);
		part3 = val.substring(fld.selectionEnd, val.length);
		fld.value = part1+'[B]'+part2+'[/B]'+part3;
	}
	
	function makeItalic(fld) 
	{
		fld = myGetElementById(fld);
		val = fld.value;
		part1 = val.substring(0, fld.selectionStart);
		part2 = val.substring(fld.selectionStart, fld.selectionEnd);
		part3 = val.substring(fld.selectionEnd, val.length);
		fld.value = part1+'[I]'+part2+'[/I]'+part3;
	}
	
	function openLinkPopup()
	{
		myGetElementById('linkpopup').style.display = "block";
	}
	
	function closeLinkPopup()
	{
		myGetElementById('linkpopup').style.display = "none";
	}
	
	function insertLink(fld) 
	{
		lnk_val = myGetElementById('link').value;
		name_val = myGetElementById('link_name').value;
		alt_val = myGetElementById('link_alt').value;
		
		if (lnk_val.length < 5) {
			alert("You didn't fill out a valid link");
			return false;
		} else {
			if (name_val == '') {
				name_val = lnk_val;
			}
			
			fld = myGetElementById(fld);
			val = fld.value;
			part1 = val.substring(0, fld.selectionStart);
			part2 = val.substring(fld.selectionEnd, val.length);
			if (alt_val != '') {
				fld.value = part1+'[LINK URL="'+lnk_val+'" ALT="'+alt_val+'"]'+name_val+'[/LINK]'+part2;
			} else {
				fld.value = part1+'[LINK URL="'+lnk_val+'"]'+name_val+'[/LINK]'+part2;
			}
			myGetElementById('link').value = '';
			myGetElementById('link_name').value = '';
			myGetElementById('link_alt').value = '';
			closeLinkPopup();
		}
	}