function MenuVisible(divMenu)
{
	divMenu.style.display = (divMenu.style.display === 'none')?'block':'none';
}

	function CheckAll()
	{
		var el;
		for (i=0;;i++){
			try{
			if(el = document.getElementById("cbx_"+i))
				el.checked = 1;
			else return 0;
			}catch(ex){}
		}
	}
	function UnCheckAll()
	{
		var el;
		for (i=0;;i++){
			try{
			if(el = document.getElementById("cbx_"+i))
				el.checked = 0;
			else return 0;
			}catch(ex){}
			//document.write( el.type);
		}
			
	}
	
function CheckForm(oForm)
	{
		if(oForm.action.value == 'del')
			return confirm("Удалить выбранные позиции?");
		return true;
	}
	
function ShowSong(url){
  window.open(url,"","toolbar=0,location=0,directories=0,menuBar=0,scrollbars=1,resizable=1,width=400,height=400,left=0,top=0");
}

index = 0;
arrEls = new Array();
function ShowHide(Object)
{
	if(Object.style.display == 'none')
		Object.style.display = 'block';
	else Object.style.display = 'none';
}
function CheckInteger(Object)
{
	document.getElementById('submit').disabled = false;
	if(!Object.value.match(/^\d+$/))
	{
		document.getElementById('submit').disabled = true;
		alert('Введите числовое значение!');
		Object.focus();
	}
}
function create_input_file()
{
	el = document.getElementById('files');
	elLabel = document.createElement("label");
	arrEls[index] = elLabel;
	elLabel.id = "lb"+index;
	newEl = document.createElement("input");
	newEl.type = "file";
	newEl.style.display = 'inline';
	newEl.style.width	= '400px';
	newEl.name = "files[]";
	elLabel.appendChild(newEl)
	elLabel.innerHTML += " <a onclick=\"javascript:Remove("+index+")\" style=\"cursor: pointer\"><b>[удалить]</b></a>";
	elLabel.innerHTML += '<br/>';
	el.appendChild(elLabel);
	index++;	
}
function Remove(iNum)
{
	document.getElementById('files').removeChild(arrEls[iNum]);
}

function checkAnswerSubmit(f){
if(f.muzid.value == ''){alert('Не выбран музыкант!');return false;}
return true;
}