/**
* Checks that any attributes have been selected properly, and modifies price as necessary
*/
function checkAttributes( form, ids, msg ){
  var bValid = true;
  var oFocus;
  var obj;

  for( i in ids ){
    obj = form[ids[i]];
    if( obj.options[obj.selectedIndex].value == '' ){
      if( bValid ){
        bValid = false;
        oFocus = obj;
      }
 		  obj.style.backgroundColor = '#ff8080';
    }else{
		  obj.style.backgroundColor = '#ffffff';
		}
  }
  if( !bValid ) {
    if( msg != '' ){
      alert(msg);
    }
    oFocus.focus();
    return false;
  } else {
    gEBI('iPrice').value = gEBI('price').value;
    return true;
  }
} // end function checkAttributes
/**
* Checks each attribute select and adjusts the display price
*/
function checkAttributes_Offset(obj){
  var aOff = attributeOffsets;
  aOff[obj.name][1] = false;
  if( obj.options[obj.selectedIndex].value == '' ){aOff[obj.name][0] = 0;}
  else{
    var pattern = /[+|-]\d+[\.]\d+%?/g;
	  var result = obj.options[obj.selectedIndex].text.match(pattern);
  	if( result != null ){
      var offset = result[result.length-1];
      if( offset.substr(offset.length-1) == '%' ){
        aOff[obj.name][0] = offset.substr(0,offset.length-1);
        aOff[obj.name][1] = true;
      }else{aOff[obj.name][0] = offset;}
    }else{aOff[obj.name][0] = 0;}
  }
  var show = gEBI('price');
  var hide = gEBI('iPrice');
  var nPrice = parseFloat(hide.value);
  var oPrice = parseFloat(hide.value);
  for(var i in aOff){
    if(parseFloat(aOff[i][0]) != 0){
      //percentages are based on original price
      if(aOff[i][1] == true){nPrice = nPrice + ((oPrice * parseFloat(aOff[i][0])) / 100);}
      else{nPrice = nPrice + parseFloat(aOff[i][0]);}
    }
  }
  show.value = fix(nPrice);
} // end function checkAttributes_Offset
/**
* Sets up the array for use by the checkAttributes_Offset function above
*/
function checkAttributes_Setup(ary){
  var rtn = new Object();
  for(var i in ary){rtn[ary[i]] = Array(0,false);}
  return rtn;
} // end function checkAttributes_Setup