function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		btnTruck_on = newImage("images/btnTruck_on.gif");
		btnServices_on = newImage("images/btnServices_on.gif");
		btnAboutUs_on = newImage("images/btnAbout_on.gif");
		btnContactUs_on = newImage("images/btnContact_on.gif");
		preloadFlag = true;
	}
}

function displayText(select,fieldName){

	if (select == 0){
		text = "Default Text"
	}
	if (select ==1){
		text = "trucks"
	}

	if (navigator.appName == "Netscape") {
			document.layers[fieldName].document.write('<b><font color="#000000" face="veranda,arial" size=3 >'+text+'</font></b>');
			document.layers[fieldName].document.close();		
	}else{
			document.all[fieldName].innerHTML=text;
	}	
}