function sprawdzFormularz(t,tekst)
{
										
					if (t.value==tekst) t.value='';					
					
					t.onblur=function(){
								if (t.value=='') t.value=tekst;
					}
}

function IntControl( evt )
{
					var charCode = (evt.which) ? evt.which : event.keyCode
					if (charCode < 48 || charCode > 57){
					return false;
					}
					return true;
}

function eventOver(t, bgColor)
{
					t.style.backgroundColor = bgColor;
					
					t.onmouseout = function()
					{
							t.style.backgroundColor = 'transparent';
					}
}

function displayWindow( name )
{
					noweOkno = window.open( name, 'okienko', 'menubar=no, toolbar=no, location=no, scrollbars=yes, resizable=no, status=no, width=640, height=480');
}