//this function opens a new window
// when the url, width, height, and position of the window is provided
function OpenWindow(URL,w,h,px,py)
{
 mywindow = window.open(URL,"mywindow","resizable,location=1,status=1,scrollbars=1,width="+ w + ",height=" + h)
 mywindow.moveTo(px,py)
 } 
/* this function takes a text box as an argument
it varifies its value if empty generates an error message
if not ask to confirm if the user is sure to make the changes
*/

/*function that ties the next available button control to the textbox a user pressed enter key in*/
function checkReturn(obj,windowEv,ev) {

var workingEvent = null;

if (windowEv!=null) workingEvent=windowEv;
else if (ev!=null) workingEvent=ev;

 if (workingEvent.keyCode == 13 || workingEvent.which == 13) 
	{
		var form = window.document.forms[0];
		var clicknext = false;
		var nextobj;
		for ( var i=0;i < form.elements.length; i++ )
		{	
			if (form.elements[i]==obj) clicknext=true;
			
			if (clicknext) 
			{
				nextobj=form.elements[i];
				if (nextobj.type.toUpperCase()=="BUTTON" || nextobj.type.toUpperCase()=="SUBMIT") 
				{
				    nextobj.focus();
					nextobj.click(); 
					break;
				}
			}
		} 
		return false;
	}
return true;
}

function Form1_onsubmit(box) {
if(box.value=="")
	{ 
	alert("A required field found empty")
	box.focus()
	return (false)
	}
else {
	if(confirm("are you shure you want to make changes"))
		return(true)
	else 
		return(false)
	}
}
/*this functions takes a stirng  and checks if its value is numeric or not return value is 
boolean true or false
function IsNumeric(sText)
{
var ValidChars="0123456789"
var Char
var IsNumber=true
 if(sText.length==0)
	{
	return false
	}
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i) 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false
         }
      }
   return IsNumber
   }*/

/*this functions takes a controle checks its value and if null error
if not numeric error other wise disable it
function ValidateBox(box)
{
	if(box.text=="")
	{
		alert("Pleas enter number of headings")
		box.focus()
		return (false)
	}
	//else if(isNumeric(box.text))
	//	return (true)
	else
	{
		alert("Please enter a numeric value")
		box.focus()
		return (false)
	}
}
*/