function disable_enable(){
  if (document.all || document.getElementById){
    if (document.newCat.catParent.disabled==true) {
      document.newCat.catParent.disabled=false;
	  document.newCat.catImage.disabled=false;
	}
    else {
      document.newCat.catParent.disabled=true;
	  document.newCat.catImage.disabled=true;
	}
    if (document.newCat.catPosition.disabled==true) {
      document.newCat.catPosition.disabled=false;
	}
    else {
      document.newCat.catPosition.disabled=true;
	  
	}
  }
}

function popUp(URL) {
  day = new Date();
  id = day.getTime();
  eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=620,height=666');");
}

function changePage(newLoc) {
  nextPage = newLoc.options[newLoc.selectedIndex].value	
  if (nextPage != "") {
    document.location.href = nextPage
  }
}

function switchMenu(obj) {
	var el = document.getElementById(obj);
	if ( el.style.display != "block" ) {
		el.style.display = 'block';
	}
	else {
		el.style.display = '';
	}
}

function checkform (form)
{
  if (form.itemName.value == "" || form.itemPrice.value == "") {
    alert("Please supply a name and a price for this product");
    return false ;
  }
}