function showMenuBody(){
	window.alert(" กรุณาโทรติดต่อเราที่  02-3204-500 ");
	return false;
}

document.oncontextmenu = showMenuBody;
if(document.addEventListener){
	document.addEventListener("mousedown", VerifyIfRightClick, true); 
}

function VerifyIfRightClick(evt) { 
	if(evt.button == 1 || evt.button == 2) { showMenuBody(); }
}

function disableselect(e){
return false
} 
function reEnable(){
return true
}

//if IE4+
document.onselectstart=new Function ("return false")

//if NS6
if (window.sidebar){
document.onmousedown=disableselect
document.onclick=reEnable
}