dom.event.addEventListener(window,'load',lnavCheck);

function lnavCheck(){
var locationURL = location.href;

//product naviugation
	if(getId("productLock")){
		if(locationURL.indexOf("/lock_lock.html") != -1){
			getIdSetClass("Lock");
		}else if(locationURL.indexOf("/lock_crystal.html") != -1){
			getIdSetClass("Crystal");
								}
		}
	
	//get id set class
	function getIdSetClass(target){
		var ide = document.getElementById(target);
		ide.className = "currentsec";
	}
	//getId
	function getId(targetid){
		var yhee = document.getElementById(targetid);
		return yhee;
	}
}