//do nothing
	function doNothing() {
		//Nothing
	}
		
//Layers
	function showLayer(theLayer) {
		if (is.ie4up) document.all[theLayer].style.visibility = 'visible';
		if (is.nav4up && !(is.nav6up)) document.layers[theLayer].visibility = 'visible';
		if (is.nav6up) document.getElementById(theLayer).style.visibility = 'visible';
		//if (is.nav6up) document.all[theLayer].style.visibility = 'visible';
	}

	function hideLayer(theLayer) {
		if (is.ie4up) document.all[theLayer].style.visibility = 'hidden';
		if (is.nav4up && !(is.nav6up)) document.layers[theLayer].visibility = 'hidden';
		if (is.nav6up) document.getElementById(theLayer).style.visibility = 'hidden';
		//if (is.nav6up) document.all[theLayer].style.visibility = 'hidden';
	}

//Pop-up window
	//Example: popWin('somepage.html','somepage',400,500,'auto');
	//theUrl, theName: as strings
	//theWidth, theHeight: in pixels
	//theScrolling: 'yes', 'no' or 'auto'
	function popWin(theUrl,theName,theWidth,theHeight,theScrolling) {
		var opts=""		;
		opts="'left=50,top=50,screenX=50,screenY=50,width="+theWidth+",height="+theHeight+",menubar=no,location=no,resizable=yes,scrollbars="+theScrolling+",status=1'" ;
		PopUP=window.open(theUrl,theName,opts);
		PopUP.focus();
	}

//ImageSwap
	//Usage: <a href="somewhere" onmouseover="switchThingy('img7','on7')" onmouseout="switchThingy('img7','off7')"><img name="img7" id="img7" src="someimage.gif" width="128" height="24" border="0" alt="" /></a>
	//Images should be preloaded!
	function switchThingy(imgDocID,imgObjName) {
		document.images[imgDocID].src = eval(imgObjName + ".src");
	}

// for use of i selection tools
var gW
function showGuide(theClass,isStatic) {
	gW=window.open('/selectionguides/'+(isStatic?'tables/':'guides/?')+theClass+(isStatic?'.html':''),'gW','left=100,top=50,screenX=100,screenY=50,width=780,height=500,menubar=yes,location=yes,resizable=yes,scrollbars=yes,status=1')
	gW.focus()
}

// for use of pop-ups in MMS with selection tools in it

	function popWinMMS(theNumber, isTable) {
		showGuide(theNumber, isTable);
		}

	function popWinMMSpopup(theURL) {
		popWin(theURL, 'mmspopup',100,50,'no');
		}

var lW
function showParamSearch(theFAM) {
	lW=window.open('','lW','left=0,top=0,screenX=0,screenY=0,width=780,height=520,resizable,scrollbars')
	lW.location.href="http://stepsearch.semiconductors.philips.com/philips-ps/ss.asp?FAM="+theFAM
	lW.focus()
}

// don't show i selection guide icon for NN6+
function printGuideIcon(line) {
	if (!is.nav6 && !is.nav7up) {
		document.write(line);
		document.close();
	}
}