////////////////////////////////////////////////////////////// Number Validation
 function keyRestrict(e, validchars) {
	 var key='', keychar='';
	 key = getKeyCode(e);
	 if (key == null) return true;
	 keychar = String.fromCharCode(key);
	 keychar = keychar.toLowerCase();
	 validchars = validchars.toLowerCase();
	 if (validchars.indexOf(keychar) != -1)
	  return true;
	 if ( key==null || key==0 || key==8 || key==9 || key==13 || key==27 )
	  return true;
	 return false;
}
function getKeyCode(e)
	{
	 if (window.event)
		return window.event.keyCode;
	 else if (e)
		return e.which;
	 else
		return null;
     }
////////////////////////////////////////////////////////////// Image Validation
function isValidImage(imagename)
{
	imagefile_value = imagename;
	var checkimg = imagefile_value.toLowerCase();
	if (!checkimg.match(/(\.jpg|\.gif|\.png|\.JPG|\.GIF|\.PNG|\.jpeg|\.JPEG)$/))
	{
	return false;
	}
	else
	{
	return true;
	}
}
// Pop up
var win = null;
function NewWindow(mypage,myname,w,h,scroll)
{
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition  = (screen.height) ? (screen.height-h)/2 : 0;
	settings     = 'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable';
	win          = window.open(mypage,myname,settings);
}