// sprintf {{{

function str_repeat(i, m) {
	for (var o = []; m > 0; o[--m] = i);
	return(o.join(""));
}

function sprintf() {
	var i = 0, a, f = arguments[i++], o = [], m, p, c, x, s = '';
	while (f) {
		if (m = /^[^\x25]+/.exec(f)) {
			o.push(m[0]);
		}
		else if (m = /^\x25{2}/.exec(f)) {
			o.push("%");
		}
		else if (m = /^\x25(?:(\d+)\$)?(\+)?(0|'[^$])?(-)?(\d+)?(?:\.(\d+))?([b-fosuxX])/.exec(f)) {
			if (((a = arguments[m[1] || i++]) == null) || (a == undefined)) {
				throw("Too few arguments.");
			}
			if (/[^s]/.test(m[7]) && (typeof(a) != "number")) {
				throw("Expecting number but found " + typeof(a));
			}
			switch (m[7]) {
				case 'b': a = a.toString(2); break;
				case 'c': a = String.fromCharCode(a); break;
				case 'd': a = parseInt(a); break;
				case 'e': a = m[6] ? a.toExponential(m[6]) : a.toExponential(); break;
				case 'f': a = m[6] ? parseFloat(a).toFixed(m[6]) : parseFloat(a); break;
				case 'o': a = a.toString(8); break;
				case 's': a = ((a = String(a)) && m[6] ? a.substring(0, m[6]) : a); break;
				case 'u': a = Math.abs(a); break;
				case 'x': a = a.toString(16); break;
				case 'X': a = a.toString(16).toUpperCase(); break;
			}
			if (/[def]/.test(m[7])) {
				s = (a >= 0 ? (m[2] ? '+' : '') : '-');
				a = Math.abs(a);
			}
			c = m[3] ? m[3] == '0' ? '0' : m[3].charAt(1) : ' ';
			x = m[5] - String(a).length - s.length;
			p = m[5] ? str_repeat(c, x) : '';
			o.push(s + (m[4] ? a + p : p + a));
		}
		else {
			throw("Huh ?!");
		}
		f = f.substring(m[0].length);
	}
	return o.join("");
}

// }}}

function randomColor(){
	var r=0,g=0,b=0;
	while( r*r+g*g+b*b < 128*128 || r*r+g*g+b*b >= 256*256 ) {
		r = Math.round(Math.random()*255);
		g = Math.round(Math.random()*255);
		b = Math.round(Math.random()*255);
	}
	return sprintf("#%02x%02x%02x", r,g,b);
}

var colorful=function() {
	$(".post, .sidebar-item, #header, #footer, .comment, #wrap").each(function(){
		$(this).css("border-color", randomColor());
	});
	$("*").each(function(){
		$(this).css("color", randomColor());
	});
}

$(function(){
//	$("#header").before("<a name='top'></a>");
	$(".boring-text").last().html(
		"<p class='boring-text' id='colorful-button'>I think I'm going to show you this magic spell: <a href='#header'><span>C</span><span>o</span><span>l</span><span>o</span><span>r</span><span>f</span><span>u</span><span>l</span></a></p>"
	);
	$("#colorful-button span").each(function(){
		$(this).css("color", randomColor());
	});
	$("#colorful-button a").click(function(){
		colorful();
		$("#header-pages *").css("color", "white");
	});
});