function cClass(elem, clase)
	{
		elem.className = clase; 
	}	

function initScrollLayers() 
	{
		if (document.getElementById('holder1'))
			{
				var wndo1 = new scrollObj('wn1', 'lyr1', null)
				wndo1.setUpScrollbar("dragBar1", "track1", "v", 1, 1)
				lyr = document.getElementById( 'scrollbar1' );
				lyr.style.visibility = "visible";
			}

		if (document.getElementById('holder2'))
			{
				var wndo = new scrollObj('wn2', 'lyr2', null)
				wndo.setUpScrollbar("dragBar2", "track2", "v", 1, 1)
				lyr = document.getElementById( 'scrollbar2' )
				lyr.style.visibility = "visible"				
			}

		if (document.getElementById('holder3'))
			{
				var wndo = new scrollObj('wn3', 'lyr3', null)
				wndo.setUpScrollbar("dragBar3", "track3", "v", 1, 1)
				lyr = document.getElementById( 'scrollbar3' )
				lyr.style.visibility = "visible"				
			}

	if (document.getElementById('holder4'))
			{
				var wndo = new scrollObj('wn4', 'lyr4', null)
				wndo.setUpScrollbar("dragBar4", "track4", "v", 1, 1)
				lyr = document.getElementById( 'scrollbar4' )
				lyr.style.visibility = "visible"				
			}

	if (document.getElementById('holder5'))
			{
				var wndo = new scrollObj('wn5', 'lyr5', null)
				wndo.setUpScrollbar("dragBar5", "track5", "v", 1, 1)
				lyr = document.getElementById( 'scrollbar5' )
				lyr.style.visibility = "visible"				
			}
}


function incrementar(tipo, id,minimo)
{
	name = 'cant' + id;
	var val = document.getElementById(name).value;
	if (tipo == 1)
		val=parseInt(val)+parseInt(minimo);
	else
	{
		val=val-minimo;
		if (val < minimo)
			val = minimo;
		}	
	document.getElementById(name).value = val;
}


/*******************************************************************************************/