function open_tour(tourFile,tourWidth,tourHeight) {

	if (tourWidth == '')
	{
		tourWidth = 770;
	}
	if (tourHeight === '')
	{
		tourHeight = 510;
	}

	var positionX = (screen.availWidth - tourWidth) / 2;
	var positionY = (screen.availHeight - tourHeight) / 2;
    var windowName = "QuickBooks_Tour";
	if (tourFile.length > 0) {
	  window.open(tourFile, windowName,"width=" + tourWidth + ",height=" + tourHeight + ",left=" + positionX + ",top=" + positionY + ",directories=no,location=no,menubar=no,resizable=no,scrollbars=no,status=no,toolbar=no");
	}
}

function checkrequired(which) {
var pass=true;
if (document.images) {
for (i=0;i<which.length;i++) {
var tempobj=which.elements[i];
if (tempobj.name.substring(0,8)=="required") {
if (((tempobj.type=="text"||tempobj.type=="textarea")&&
tempobj.value=='')||(tempobj.type.toString().charAt(0)=="s"&&
tempobj.selectedIndex==0)) {
pass=false;
break;
         }
      }
   }
}
if (!pass) {
shortFieldName=tempobj.name.substring(8,30).toUpperCase();
alert("Please make sure the "+shortFieldName+" field was properly completed.");
return false;
}
else
return true;
}