function emptyvalidation(entered, alertbox)
{
	with (entered)
	{
		while (value.charAt(0) == ' ')
			value = value.substring(1);
		while (value.charAt(value.length - 1) == ' ')
			value = value.substring(0, value.length - 1);
		if (value==null || value=="")
		{
			if (alertbox!="") alert(alertbox);
			return false;
		}
		else return true;
	}
}

//This is new one

function emailvalidation(entered,alertbox)
{
	with (entered)
	{
		apos=value.indexOf("@"); //Total letters before @
		dotpos=value.lastIndexOf(".");//Total letters before .
		beforeStr=value.substring(0,apos);
		udslpos=beforeStr.lastIndexOf("_");
		dotfpos=beforeStr.indexOf(".");
		dotlpos=beforeStr.lastIndexOf(".");
		lastpos=value.length-1;//Total Letters

	if(apos<1 || dotpos-apos<2 || lastpos-dotpos>3 || lastpos-dotpos<2 || dotfpos!=dotlpos || apos-1==udslpos || dotpos==lastpos) 
		{if (alertbox) {alert(alertbox);} return false; }
		else {return true;}
	}
}

//This is old one
function emailCheck(str) 
{
	var at="@";
	var dot=".";
	var lat=str.indexOf(at);
	var lstr=str.length;
	var ldot=str.indexOf(dot);
	if (str.indexOf(at)==-1) return false;
	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr) return false;
	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr) return false;
	if (str.indexOf(at,(lat+1))!=-1) return false;
	if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot) return false;
	if (str.indexOf(dot,(lat+2))==-1) return false;
	if (str.indexOf(" ")!=-1) return false;
	if ((str.lastIndexOf(".")+1)==str.length) return false;		
	return true;
}

function IsNumeric(strString,extraChar)
{
   var strValidChars = "0123456789()-.";
   strValidChars=strValidChars+extraChar;
   var strChar;
   var blnResult = true;
   if ((strString.length == 0) || (strString.length > 16) || (strString.length < 7))  return false;

   for (i = 0; i < strString.length && blnResult == true; i++)
      {
      strChar = strString.charAt(i);
      if (strValidChars.indexOf(strChar) == -1) blnResult = false;
      }
   return blnResult;
}

function IsPhone(strString,extraChar)
{
   var strValidChars = "0123456789()- ";
   strValidChars=strValidChars+extraChar;
   var strChar;
   var blnResult = true;
   if ((strString.length == 0) || (strString.length > 16) || (strString.length < 7))  return false;

   for (i = 0; i < strString.length && blnResult == true; i++)
      {
      strChar = strString.charAt(i);
      if (strValidChars.indexOf(strChar) == -1) blnResult = false;
      }
   return blnResult;
}

function IsZip(strString,extraChar)
{
	
   var strValidChars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ- ";
   strValidChars=strValidChars+extraChar;
   var strChar;
   var blnResult = true;
   if ((strString.length == 0) || (strString.length > 7) || (strString.length < 5)) return false;

   for (i = 0; i < strString.length && blnResult == true; i++)
      {
      strChar = strString.charAt(i);
      if (strValidChars.indexOf(strChar) == -1) blnResult = false;
      }
   return blnResult;
}
function blinkExecute(target,color){
  document.getElementById(target).style.backgroundColor = color;
}

function blinkBlink (target){
  color1 = "#feff6f"; // blinking color
  color2 = "#ffffff"; // background color

  setTimeout('blinkExecute("'+target+'","'+color1+'")',0);
  setTimeout('blinkExecute("'+target+'","'+color2+'")',500);
  setTimeout('blinkExecute("'+target+'","'+color1+'")',1000);
  setTimeout('blinkExecute("'+target+'","'+color2+'")',1500);             
  setTimeout('blinkExecute("'+target+'","'+color1+'")',2000);
  setTimeout('blinkExecute("'+target+'","'+color2+'")',2500);     
  setTimeout('blinkExecute("'+target+'","'+color1+'")',3000);
  setTimeout('blinkExecute("'+target+'","'+color2+'")',3500);     
  setTimeout('blinkExecute("'+target+'","'+color1+'")',4000);
  setTimeout('blinkExecute("'+target+'","'+color2+'")',4500);             
  document.getElementById(target).focus();
}