function referenceLink (url)
{
	var params = 'width=700,height=500,location=1,menu=1,resizable=1,scrollbars=1';
	
	if (url) {
		var refWin = window.open(url, 'refWin', params);
		refWin.focus();
	}
}

function imageRollover(id, src) {
	if (document.images) {
		var image = document.getElementById(id);
		image.src = src;
	}
}


function showhide(targetID) {
	//change target element mode
	var elementmode = document.getElementById(targetID).style;
	elementmode.display = (!elementmode.display) ? 'none' : '';
}

function changetext(changee,oldText,newText) {
	//changes text in source element
	var elementToChange = document.getElementById(changee);
	elementToChange.innerHTML = (elementToChange.innerHTML == oldText) ? newText : oldText;
}

function workforchange(targetID,sourceID,oldContent,newContent) {
	showhide(targetID);
	changetext(sourceID,oldContent,newContent);
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}