function interview(index) {
	for (i=1; i<=2; i++)if (index == i) {
		$('.interview li a').css({"background-image":"url(../images/contents/interview_tab_"+index+".jpg)"});
		$('#tabInterview_'+index).css({"display":"block"});
	} else {
		$('#tabInterview_'+i).css({"display":"none"});
	}
}

function history(index) {
	for (i=1; i<=5; i++)if (index == i) {
		$('.tab'+index).addClass('on');
		$('#tab_'+index).css({"display":"block"});
	} else {
		$('.tab'+i).removeClass('on');
		$('#tab_'+i).css({"display":"none"});
	}
}

function tab1(index) {
	for (i=1; i<=4; i++)if (index == i) {
		$('.making li a').css({"background-image":"url(../images/contents/engegg_m_"+index+".jpg)"});
		$('#tab_'+index).css({"display":"block"});
	} else {
		$('#tab_'+i).css({"display":"none"});
	}
}

function stap1(index) {
	for (i=1; i<=3; i++)if (index == i) {
		$('.stap li a').css({"background-image":"url(../images/contents/pro_sm1_"+index+".jpg)"});
		$('#tab_'+index).css({"display":"block"});
	} else {
		$('#tab_'+i).css({"display":"none"});
	}
}

function library(index) {
	for (i=1; i<=2; i++)if (index == i) {
		$('.library li a').css({"background-image":"url(../images/contents/librarym_"+index+".jpg)"});
		$('#tab_'+index).css({"display":"block"});
	} else {
		$('#tab_'+i).css({"display":"none"});
	}
}

function tab(index) {
	for (i=1; i<=6; i++)if (index == i) {
		$('.leftmenu li .m4_'+i).addClass('on');
		$('.leftmenu li #sm'+index).css({"display":"block"});
	} else {
		$('.leftmenu li .m4_'+i).removeClass('on');
		$('.leftmenu li #sm'+i).css({"display":"none"});
	}
}