// JavaScript Document
function changetab(obj){
	if(obj == 'js_1'){
		document.getElementById("content1").style.display = "block";
		document.getElementById("js_1").className = 'active_se';
	}
	else
	{
		document.getElementById("content1").style.display = "none";
		document.getElementById("js_1").className = 'none';
	}
	if(obj == 'js_2'){
		document.getElementById("content2").style.display = "block";
		document.getElementById("js_2").className = 'active_se';
	}
	else
	{
		document.getElementById("content2").style.display = "none";
		document.getElementById("js_2").className = 'none';
	}
}