function ltrim(s){ 
return s.replace( /^\s*/, ""); 
} 
 
function rtrim(s){ 
return s.replace( /\s*$/, ""); 
} 

function trim(s){ 
return rtrim(ltrim(s)); 
}

function keyEnter(e){
	var key=window.event ? e.keyCode : e.which;	
	if(key==13){
		// Event.stop(event);
		return false;
	}else{
		return true;
	}
}