var isNS = isIE = isDOM = false;
	if (document.getElementById) isDOM = true;
	else if (document.all) isIE = true;
	else if (document.layers) isNS = true;
	var isDHTML = (isDOM || isNS || isIE)?true:false;

	function getObj(id) {
		return 	(isDOM)?document.getElementById(id):
				(isIE)?document.all[id]:
				(isNS)?document.layers[id]:null;
	}	

	var imgHome = new Image();
	imgHome.src = "images/navHome.gif";
	
	var imgService = new Image();
	imgService.src = "images/navService.gif";
	
	var imgParts = new Image();
	imgParts.src = "images/navSpecialParts.gif";
	
	var imgGeneralParts = new Image();
	imgGeneralParts.src = "images/navParts.gif";	
	
	var imgAccessories = new Image();
	imgAccessories.src = "images/navAccessories.gif";
	
	var imgMerchandise = new Image();
	imgMerchandise.src = "images/navMerchandise.gif";		

	var imgContact = new Image();
	imgContact.src = "images/navContactUs.gif";
	
	var imgCompany = new Image();
	imgCompany.src = "images/navAboutUs.gif";
	
	var imgOrder = new Image();
	imgOrder.src = "images/navOrderDetails.gif";	

	function tNavImg(id) {
		strImg = "";
		if(id==1) { 
			strImg=imgHome.src;
			getObj("divParts").style.visibility="hidden";
			getObj("divAccessories").style.visibility="hidden";
			getObj("divBlank").style.visibility="hidden";		
		}
		else if(id==2){ 
			strImg=imgService.src;
			getObj("divParts").style.visibility="hidden";
			getObj("divAccessories").style.visibility="hidden";
			getObj("divBlank").style.visibility="hidden";						
		}	
		else if(id==3){
			strImg=imgParts.src;
			getObj("divBlank").style.visibility="visible";			
			getObj("divParts").style.visibility="visible";
			getObj("divAccessories").style.visibility="hidden";			
		}
		else if(id==8){
			strImg=imgGeneralParts.src;
			getObj("divParts").style.visibility="hidden";
			getObj("divAccessories").style.visibility="hidden";
			getObj("divBlank").style.visibility="hidden";						
		}			
		else if(id==4){
			strImg=imgAccessories.src;
			getObj("divBlank").style.visibility="visible";
			getObj("divAccessories").style.visibility="visible";						
			getObj("divParts").style.visibility="hidden";
		}	
		else if(id==5){
			strImg=imgMerchandise.src;		
			getObj("divParts").style.visibility="hidden";
			getObj("divAccessories").style.visibility="hidden";			
			getObj("divBlank").style.visibility="hidden";			
		}			
		else if(id==6) {
			strImg=imgContact.src;
			getObj("divParts").style.visibility="hidden";
			getObj("divAccessories").style.visibility="hidden";
			getObj("divBlank").style.visibility="hidden";				
		}	
		else if(id==7){
			strImg=imgCompany.src;
			getObj("divParts").style.visibility="hidden";
			getObj("divAccessories").style.visibility="hidden";
			getObj("divBlank").style.visibility="hidden";						
		}
		else if(id==9){
			strImg=imgOrder.src;
			getObj("divParts").style.visibility="hidden";
			getObj("divAccessories").style.visibility="hidden";
			getObj("divBlank").style.visibility="hidden";						
		}		

		var img = getObj("imgNavImg");
		if(img!=null){
		    if(img.src.indexOf(strImg)==-1)  
			    img.src = strImg;
		    else {
			    img.src = imgThisPage.src;
		    }	
		}
	}