function switchView(id) {

		var element=document.getElementById(id);
		var img=document.getElementById(id+'Img');
		
		if (element.style.display=='none') {

			element.style.display='block'; 
			img.src='images/admin_ikona_uparrow.gif'

			}

		else {

		    element.style.display='none';
			img.src='images/admin_ikona_downarrow.gif'

			}

} 

function switchSimple(id) {

		var element=document.getElementById(id);
		var img=document.getElementById(id);
		
		if (element.style.display=='none') {
			element.style.display='block'; 
		}
		else {
			element.style.display='none';
		}

} 


function divON(blok) {
	document.getElementById(blok).style.display='block';
}
function divOFF(blok) {
	document.getElementById(blok).style.display='none';
}

function preloader(czas) {
	divON('preloader');
	setTimeout("divOFF('preloader')",czas);
}

function switchViewWC(id){
	   // max - liczba elementów w menu
	   var max=3;	
	   if(document.getElementById && document.getElementById(id)){   
		   /*get hold of the element*/
		   var ele = document.getElementById(id); 
			
		   for(var i=1;i<max;i++) {
		   		if ('dz_'+i!=id)
					divOFF('dz_'+i)
					//document.getElementById().style.display="none"; 
			}
			
			preloader(2000);
			if(ele.style.display!='none') 
				setTimeout("divOFF('"+id+"')", 2000);
			else 
				setTimeout("divON('"+id+"')", 2000);
	   }
	}