function getObject(strDiv){	
	if (document.layers){
		return document.layers[strDiv];
	}else if (document.all){
		return document.all[strDiv];		
	}else{
		return document.getElementById(strDiv);		
	}
}

function changeImage(strImageID,strImageName){		
	objImage = getObject(strImageID);
	objImage.src = 'images/'+strImageName+'.png';		
}

function setHideTimer(strDiv){
	hideMenu = setTimeout("showDiv('"+strDiv+"','none')",100)	
}

function clearHideTimer(){
	clearTimeout(hideMenu);	
}


function showDiv(strDiv,strVisibility){		
	if(strVisibility=="block"){
		objDiv = getObject("contentsubmenu1");	
		objDiv.style.display = "none";			
		objDiv = getObject("contentsubmenu2");	
		objDiv.style.display = "none";	
	}
	objDiv = getObject(strDiv);	
	objDiv.style.display = strVisibility;		
}