// JavaScript Document
function removeDish(menu)
{

 	if (menu.value != '')
	{
   		alert('The selected item to remove is part of a Dish ...  click on a Dish in the list.')
   		menu.value='';
   		return;
 	}

}

function check(menu)
{
 if(isNaN(menu.value))
 menu.value="";
}
function increaseQuantity(menu)
{
	// find the selected item
  
	var item =  parseInt(menu.name.substring(1,menu.name.length));
	var val;
	if(menu.value==''||isNaN(menu.value))
	val=1;
    else{
	val=parseInt(menu.value);
	val++
	}
    menu.value = val;

}

function decreaseQuantity(menu)
{
	// find the selected item
	var val;
	if(menu.value==''||isNaN(menu.value)){
    menu.value = '';
    alert("Your quantity is empty.")
    return;}
    else if(menu.value>=2){
    val=parseInt(menu.value);
	val--}
	else
	val=''
    menu.value = val;

}

function rowOverEffect(object) {
  if (object.className == 'moduleRows') object.className = 'moduleRowsOver';
}

function rowOutEffect(object) {
  if (object.className == 'moduleRowsOver') object.className = 'moduleRows';
}

function popupWindow(url) {
  window.open(url,'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,copyhistory=no,width=400,height=380,screenX=150,screenY=150,top=150,left=150')
}