//	Browser sniffer. Script will only be enabled in compliant browsers. Also used for sizing form fields.													



var isMac = (navigator.userAgent.indexOf("Macintosh") != -1);

var isWin = (navigator.userAgent.indexOf("Windows 95") != -1 || navigator.userAgent.indexOf("Windows NT") != -1);

var isNS =  (navigator.appName == "Netscape");

var isIE =  (navigator.userAgent.indexOf("MSIE") != -1);

var ieWin = (navigator.userAgent.indexOf("MSIE") != -1 && (navigator.userAgent.indexOf("Windows 95") != -1 || navigator.userAgent.indexOf("Windows NT") != -1));

var toolBarLoc = "";



browser = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3 )) || ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 )))

			

//	Event handling functions									



function mouseOver (buttonName) {

	if ( (browser) && (buttonName!=active) ) {

		document[buttonName].src=eval(buttonName+"_on.src");

	}       

}



function mouseOut (buttonName) {

	if ( (browser) && (buttonName!=active) ) {

		document[buttonName].src=eval(buttonName+"_off.src");

	} 

}



function mouseClick (buttonName) {

	active=buttonName;

	if (browser) {

		document[buttonName].src=eval(buttonName+"_active.src");

	}

}



function mouseOverSub (buttonName) {

	if ( (browser) && (buttonName!=active_sub) ) {

		document[buttonName].src=eval(buttonName+"_on.src");

	}       

}



function mouseOutSub (buttonName) {

	if ( (browser) && (buttonName!=active_sub) ) {

		document[buttonName].src=eval(buttonName+"_off.src");

	} 

}



function mouseClickSub (buttonName) {

	active_sub=buttonName;

	if (browser) {

		document[buttonName].src=eval(buttonName+"_on.src");

	}

}



// this goes in the body tag for onLoad

function pageLoad ( ) {

	if (browser) {

		if (active!= "" && active != "non") {

			document[active].src=eval(active+"_active.src");

		}

		if (active_sub != "" && active_sub != "non") {

			document[active_sub].src=eval(active_sub+"_on.src");

		}

	}

}



// preload the rollover images



	one_on = new Image; one_on.src="images/topnav_home_on.gif";

	one_off = new Image; one_off.src="images/topnav_home_off.gif";

	one_active = new Image; one_active.src="images/topnav_home_act.gif";

	

	two_on = new Image; two_on.src="images/topnav_about_on.gif";

	two_off = new Image; two_off.src="images/topnav_about_off.gif";

	two_active = new Image; two_active.src="images/topnav_about_act.gif";



	three_on = new Image; three_on.src="images/topnav_companies_on.gif";

	three_off = new Image; three_off.src="images/topnav_companies_off.gif";

	three_active = new Image; three_active.src="images/topnav_companies_act.gif";



	four_on = new Image; four_on.src="images/topnav_jobs_on.gif";

	four_off = new Image; four_off.src="images/topnav_jobs_off.gif";

	four_active = new Image; four_active.src="images/topnav_jobs_act.gif";



	five_on = new Image; five_on.src="images/topnav_contact_on.gif";

	five_off = new Image; five_off.src="images/topnav_contact_off.gif";

	five_active = new Image; five_active.src="images/topnav_contact_act.gif";