$(".switc_h").children().mouseover(function(){

	if($(this).attr("class")=="nor"){
		var doT = $(this).siblings(".act");
		doT.attr("class","nor");

		var current_id = $(this).attr("rel");
		var numb = current_id.substr(3);

		var content = '<div id="dh_wid">' + $("#" + current_id).html() + '</div>';
		$(this).attr("class","act");
		$("#e_cont").html(content);	
		//ÄÚÈÝ¿í¶È
		var cw = document.getElementById('dh_wid').offsetWidth;
		//offset
		var pr = (numb-1) * 86;
		var pe = pr - Math.round(cw / 2) + 20;
		$("#e_cont").attr("style","padding-left:" + pe + "px;width:" + (930 - pe) + "px")
	}
})