$(document).ready(function() {
	$("a.target_blank").attr( { target: "_blank" } );
} );

function changeColor(id, color){
	$("#" + id).css({'color' : color});
}

function div_show(id){
	$("." + id).css({'display' : 'block'});
}

function showSub(sub){
	$("#sub" + sub).css({'display' : 'block'});
}

function hideSub(sub){
	$("#sub" + sub).css({'display' : 'none'});
}

function scrollBar(){
	$(function(){
		var scrollContent = $("div#text-block");
		var scrollContentText = $("div#text-content");
		
		if(scrollContentText.height() > scrollContent.height()){
			$("div#scrollbar").css('display','block');
		}
		$("div#scrollbar-inner").slider({
			orientation: "vertical",
			value: 100,
			min: 0,
			max: 100,
			slide: function( event, ui ) {
				if(scrollContentText.height() > scrollContent.height()){
					scrollContentText.css("margin-top", Math.round( (ui.value - 100)/100 * (scrollContentText.height() - scrollContent.height()) ) + "px");
				}
			}
		});
	});
}