function doSend(e)
{
if(e.keyCode == 13)  //enter pressed
{
   if (jobPage() == false)
     	return false ;
   else
   		return true ;
   
}
return true;
}

function IsNumeric(sText)
{
   var ValidChars = "0123456789";
   var IsNumber=true;
   var Char; 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
   { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
      {
         IsNumber = false;
      }
   }
   return IsNumber;
}

function trim(sString) 
{
	while (sString.substring(0,1) == ' ')
	{
		sString = sString.substring(1, sString.length);
	}
	while (sString.substring(sString.length-1, sString.length) == ' ')
	{
		sString = sString.substring(0,sString.length-1);
	}
	return sString;
}

function jobPage()
{
	var Zip = document.frmSearch.txtZip;
	
	if (trim(Zip.value) == "")
	{
		alert('Please enter the zip code.');
		Zip.focus() ;
		return false;
	}
	
	if (IsNumeric(trim(Zip.value)) == false)
	{
		alert('Please enter a valid 5 digit zip code. Only numeric values allowed.');
		Zip.focus() ;
		return false;
	}
	
	if (trim((Zip.value).toString()).length < 5 || trim((Zip.value).toString()).length > 5)
	{
		alert('Please enter a valid 5 digit zip code.');
		Zip.focus() ;
		return false;
	}
		window.open("http://jobs.summerjobsection.com/a/jobs/find-jobs/l-" + Zip.value);
		Zip.value = "";
}