// JavaScript Document

function filtr(id) 
{
	
	if ( id == 1 )
	{
		var table_filtr = Array('glowna_01_1_1_2_1', 'glowna_01_1_1_2_2', 'glowna_01_1_1_2_3');
	}
	else if ( id == 4 )
	{
		var div = document.getElementById("loop").firstChild;
		var loop = div.nodeValue;
		loop = parseInt(loop) - 1;
		
		var table_filtr = new Array();
		var div_id = null;
		
		for ( var j=0; j<=loop; j++)
		{
			div_id = "realizacje_01_1_1_1_" + j;
			//document.write(div_id);
			table_filtr[j] = new Array(""+div_id+"");
		}
	}
	else if ( id == 5 )
	{
		var table_filtr = Array('realizacje_opis_01_1');
	}
	else if ( id == 6 )
	{
		var div = document.getElementById("loop").firstChild;
		var loop = div.nodeValue;
		loop = parseInt(loop) - 1;
		
		var table_filtr = new Array();
		var div_id = null;
		
		for ( var j=0; j<=loop; j++)
		{
			div_id = "referencje_01_1_" + j;
			//document.write(div_id);
			table_filtr[j] = new Array(""+div_id+"");
		}
	}
	
	var div_filtr = null;
	
	for ( var i=0; i<table_filtr.length; i++ )
	{
		div_filtr = document.getElementById(table_filtr[i]);
		
		div_filtr.style.opacity = "0.5";
		div_filtr.style.filter = "alpha(opacity=50)";
	}
	
}