sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);

var selected_id = null;
var dom = document.getElementById; 
function setTabl(id) { 
	if (dom) { 
		switch(id) {
			case 'pnav_latest':
			  document.getElementById('pnav_analyze').src = '/img/pnav_upcoming.gif';
			  document.getElementById('pnav_getinformed').src = '/img/pnav_getinformed.gif';
			  document.getElementById('pnav_latest').src = '/img/pnav_latest_on.gif';
			  break;
			case 'pnav_getinformed':
			  document.getElementById('pnav_latest').src = '/img/pnav_latest.gif';
			  document.getElementById('pnav_analyze').src = '/img/pnav_analyze.gif';
			  document.getElementById('pnav_getinformed').src = '/img/pnav_getinformed_on.gif';
			  break;
			case 'pnav_analyze':
			  document.getElementById('pnav_latest').src = '/img/pnav_latest.gif';
			  document.getElementById('pnav_getinformed').src = '/img/pnav_getinformed.gif';
			  document.getElementById('pnav_analyze').src = '/img/pnav_analyze_on.gif';
			  break;
		}
	} 
} 
function setTabr(id) { 
	if (dom) { 
		switch(id) {
			case 'pnav_led':
			  document.getElementById('pnav_upcoming').src = '/img/pnav_upcoming.gif';
			  document.getElementById('pnav_spotlight').src = '/img/pnav_spotlight.gif';
			  document.getElementById('pnav_led').src = '/img/pnav_led_on.gif';
			  break;
			case 'pnav_upcoming': 
			  document.getElementById('pnav_spotlight').src = '/img/pnav_spotlight.gif';
			  document.getElementById('pnav_led').src = '/img/pnav_led.gif';
			  document.getElementById('pnav_upcoming').src = '/img/pnav_upcoming_on.gif';
			  break;
			case 'pnav_spotlight': 
			  document.getElementById('pnav_led').src = '/img/pnav_led.gif';
			  document.getElementById('pnav_upcoming').src = '/img/pnav_upcoming.gif';
			  document.getElementById('pnav_spotlight').src = '/img/pnav_spotlight_on.gif';
			  break;
		}
	} 
} 

function getStyleObject(objectId) {
	if(document.getElementById && document.getElementById(objectId)) {
		return document.getElementById(objectId).style;
	}
	else if (document.all && document.all(objectId)) {  
		return document.all(objectId).style;
	} 
	else if (document.layers && document.layers[objectId]) { 
		return document.layers[objectId];
	} else {
		return false;
	}
}

function changeObjectVisibility(objectId, newVisibility) {
    var styleObject = getStyleObject(objectId);
    if(styleObject) {
		styleObject.visibility = newVisibility;
		return true;
    } else {
		return false;
    }
}


function switchDiv(div_id) {
	var style_sheet = getStyleObject(div_id);
	if (style_sheet) {
	  	changeObjectVisibility('products_content',"hidden");
		changeObjectVisibility('approach_content',"hidden");
		changeObjectVisibility('about_content',"hidden");
		changeObjectVisibility('led_content',"hidden");
		changeObjectVisibility('contact_content',"hidden");
		window.setTimeout('changeObjectVisibility(\'' + div_id + '\',"visible")',200);

	} else {
	  	alert("Please try again with a current browser.");
	}
}

function popUp(img) {
	var style_sheet = getStyleObject('popup');
	if (style_sheet) {
        changeObjectVisibility('popup','hidden');
	    document.getElementById('popedimg').src = '/img/' + img + '.jpg';
		changeObjectVisibility('popup',"visible");
	}
}

function popTxt(lyr) {
	scroll(0,0);
	var style_sheet = getStyleObject('poptxt'+lyr);
	if (style_sheet) {
		changeObjectVisibility('poptxt'+lyr,"visible");
	}
}

function swaptab(id) {
	if (dom) {
		document.getElementById(id).src = '/img/nav2_ourapproach_on.png';
	}
}
function cleartab(id) {
	if (dom) {
		document.getElementById(id).src = '/img/nav2_ourapproach.png';
	}
}


function doClear(theText) {
     if (theText.value == theText.defaultValue) {
         theText.value = ""
     }
}

var win=null;
function makeWin (mypage,myname,w,h,scroll,pos) {
    if(pos=="random") {
		LeftPosition=(screen.width)?Math.floor(Math.random()*(screen.width-w)):100;
		TopPosition=(screen.height)?Math.floor(Math.random()*((screen.height-h)-75)):100;
	}
	if(pos=="center") {
		LeftPosition=(screen.width)?(screen.width-w)/2:100;
		TopPosition=(screen.height)?(screen.height-h)/2:100;
	} else
		if ((pos!="center" && pos!="random") || pos==null) {
			LeftPosition=0;TopPosition=20
		}
		settings = 'width=' + w + ',height=' + h + ',top=' + TopPosition + ',left=' + LeftPosition + ',scrollbars=' + scroll + ',location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=no';
	win=window.open(mypage,myname,settings);
	win.focus();
}