textFloat = function() {
	var t = $("#material").width();
	var t1 = $("#material_pict").width();
	var t2 = t - t1;
	if (t2>210) {
		$("#material_pict").css({'float' : 'left', 'margin-right' : '20px'});
	}
	else {
		$("#material_pict").css({'float' : 'none', 'margin-right' : '0px'});
	}
}

text2Float = function(id) {
	var t = $("#material").width();
	var t1 = $("#material_pict" + id).width();
	var t2 = t - t1;
	if (t2>210) {
		$("#material_pict" + id).css({'float' : 'left', 'margin-right' : '20px'});
	}
	else {
		$("#material_pict" + id).css({'float' : 'none', 'margin-right' : '0px'});
	}
}

openBigImg = function(id, w , h) {
	$('#big_pic' + id).modal({
		containerCss: {
			height: h + 30,
			width: w + 30,
		}
	});
}