function showHide(elementid, elementid2){
if (document.getElementById(elementid).style.display == 'none'){
document.getElementById(elementid).style.display = '';
} else {
document.getElementById(elementid).style.display = 'none';
}
if (document.getElementById(elementid2).style.display == 'none'){
document.getElementById(elementid2).style.display = '';
} else {
document.getElementById(elementid2).style.display = 'none';
}
}
/*
function checkCheckBoxes(form) { 
// Checking if at least one period button is selected. Or not. 

if (<?php echo $script;?>!document.sok.kategori1.checked){alert("Du måste markera minst ett alternativ"); 
return false; } 


return true;
}*/



function disableEnterKey(e)
{
     var key;     
     if(window.event)
          key = window.event.keyCode; //IE
     else
          key = e.which; //firefox     

     return (key != 13);
}