// screen's height and width
if (document.all)
{
	window_width  = document.documentElement.clientWidth;
	window_height = document.documentElement.clientHeight;
}
else
{
	window_width  = document.documentElement.clientWidth;
	window_height = document.documentElement.clientHeight;
}


// general functions

function changeSomething(which, obj, whattodo)
{
	switch(which)
	{
		case 0:
			if (whattodo)
				obj.className = 'menu_item_over';
			else
				obj.className = 'menu_item_excep';
		break;		

		case 1:
			if (whattodo)
				obj.className = 'menu_item_over';
			else
				obj.className = 'menu_item';
		break;

		case 2:
			if (whattodo)
				obj.src= './img/saiba_mais_2.jpg';
			else
				obj.src = './img/saiba_mais_1.jpg';
		break;

		case 3:
			if (whattodo)
				obj.src= './img/bt_cadastrese2.jpg';
			else
				obj.src = './img/bt_cadastrese1.jpg';
		break;

		case 4:
			if (whattodo)
				obj.src= './img/bt_ok_2.jpg';
			else
				obj.src = './img/bt_ok_1.jpg';
		break;
		
		case 5:
			if (whattodo)
				obj.className = 'input_1_focus';
			else
				obj.className = 'input_1';
		break;

		case 6:
			if (whattodo)
				obj.src = './img/bt_sair_2.jpg';
			else
				obj.src = './img/bt_sair_1.jpg';
		break;

	}
}

function destaqueNav(bt, obj, whattodo)
{
	// verificando o destaque atual
	for (i=1;i<=5;i++)
	{
		if (document.getElementById('destaque_' + i).style.display == 'block')
		{
			selected = i;
			break;
		}
	}

	if (whattodo)
	{
		if (selected != bt)
			obj.src = "./img/" + bt +"_state_2.jpg";
	}
	else
	{
		if (selected != bt)
			obj.src = "./img/" + bt +"_state_1.jpg";
	}
}

function destaqueNavClick(clicked)
{
	
	for (i=1; i<=5; i++)
	{
		if (i == clicked)
		{
			document.getElementById('dest_img' + i).src = "./img/" + i +"_state_3.jpg";
			document.getElementById('destaque_' + i).style.display = "block";
			document.getElementById('titulo_' + i).style.display = "block";
			document.getElementById('imagem_' + i).style.display = "block";
		}
		else
		{
			if (document.getElementById('dest_img' + i))
			{			
				document.getElementById('dest_img' + i).src = "./img/" + i +"_state_1.jpg";
				document.getElementById('destaque_' + i).style.display = "none";
				document.getElementById('titulo_' + i).style.display = "none";
				document.getElementById('imagem_' + i).style.display = "none";				
			}
		}
	}
	
}

function destaqueSaibaMaisClick()
{
	for (i=1; i<=5; i++)
	{
		if (document.getElementById('titulo_' + i))
		{			
			if (document.getElementById('titulo_'+i).style.display == 'block')
			{
				nid = document.getElementById('noticia_id_'+i).innerHTML;
				document.location = 'index.php?a=mnovidade&id=' + nid;
			}
		}
	}	
}

function overCat(id,stat)
{
	if (stat)
	{
			document.getElementById('cat_'+id).className = 'cat_title_1_over';
	}
	else
	{
		if (document.getElementById('cat_mat_'+id).style.display == 'none')
			document.getElementById('cat_'+id).className = 'cat_title_1';
	}
}


function mostraMatCat(id)
{
	if (document.getElementById('cat_mat_'+id).style.display == 'none')
	{
		document.getElementById('cat_mat_'+id).style.display = 'block';
		document.getElementById('cat_'+id).className = 'cat_title_1_over';	
	}
	else
	{
		document.getElementById('cat_mat_'+id).style.display = 'none';
		document.getElementById('cat_'+id).className = 'cat_title_1';			
	}
}