function isURL(argvalue) {

  if (argvalue.indexOf(" ") != -1)
    return false;
  else if (argvalue.indexOf("http://") == -1)
    return false;
  else if (argvalue == "http://")
    return false;
  else if (argvalue.indexOf("http://") > 0)
    return false;

  argvalue = argvalue.substring(7, argvalue.length);
  if (argvalue.indexOf(".") == -1)
    return false;
  else if (argvalue.indexOf(".") == 0)
    return false;
  else if (argvalue.charAt(argvalue.length - 1) == ".")
    return false;

  if (argvalue.indexOf("/") != -1) {
    argvalue = argvalue.substring(0, argvalue.indexOf("/"));
    if (argvalue.charAt(argvalue.length - 1) == ".")
      return false;
  }

  if (argvalue.indexOf(":") != -1) {
    if (argvalue.indexOf(":") == (argvalue.length - 1))
      return false;
    else if (argvalue.charAt(argvalue.indexOf(":") + 1) == ".")
      return false;
    argvalue = argvalue.substring(0, argvalue.indexOf(":"));
    if (argvalue.charAt(argvalue.length - 1) == ".")
      return false;
  }

  return true;

}
	function SortBy(SortType) 
	{
		var f = document.frmSignUp;
		{
			f.txtSortType.value = SortType;
			f.submit();			
		}
	}

	function NextPage2() 
	{
		var f = document.frmSignUp;
	        if (isURL(f.txtWeb1.value) == false && (f.txtWeb1.value != 'http://' && f.txtWeb1.value != ''))
	        {
	        alert("You have entered an invalid web URL: " + f.txtWeb1.value);
	        }
	        else if (isURL(f.txtWeb2.value) == false && (f.txtWeb2.value != 'http://' && f.txtWeb2.value != ''))
	        {
	        alert("You have entered an invalid web URL: " + f.txtWeb2.value);
	        }
	        else if (isURL(f.txtWeb3.value) == false && (f.txtWeb3.value != 'http://' && f.txtWeb3.value != ''))
	        {
	        alert("You have entered an invalid web URL: " + f.txtWeb3.value);
	        }
        	else
		{
			f.txtStepDirection.value = "Forward";
			f.submit();			
		}
	}



	function NextPage() 
	{
		var f = document.frmSignUp;
		{
			f.txtStepDirection.value = "Forward";
			f.submit();			
		}
	}
	function NextPageVerify() 
	{
		var f = document.frmSignUp;
		if (f.R1(0).checked == true)
			{
			var Verify=confirm("Are you sure you wish decline membership terms of service?");
			if (Verify == true)
				{
				f.txtStepDirection.value = "Abort";
				f.submit();			
				}
			}
		else
			{
			if (f.R1(1).checked == true)
				{
				f.txtStepDirection.value = "Forward";
				f.submit();	
				}
			if (f.R1(1).checked == false)
				{
				alert("You must select accept or decline?");
				}
			}

	}
	function BackPage() 
	{
		var f = document.frmSignUp;
		{
			f.txtStepDirection.value = "Backward";
			f.submit();			
		}
	}
	function CheckAll()
	{
	for (var i=0;i<document.frmSignUp.elements.length;i++)
	  {
	  var e = document.frmSignUp.elements[i];
	  if (e.name == 'LineItem')
	    e.checked = document.frmSignUp.chkSelectAll.checked;
	  }
	}
	function DeleteAllChecked() 
	{
		var f = document.frmSignUp;
		var Verify=confirm("Are you sure you wish to delete the item(s) currently checked?");
		if (Verify == true)
		{
			f.submit();			
		}
	}
	function ClearZipcode() 
	{
		var f = document.frmSignUp;
		if (f.txtZipCode.value == '00000')
		{
			f.txtZipCode.value = '';			
		}
	}
	function ResetZipcode() 
	{
		var f = document.frmSignUp;
		if (f.txtZipCode.value == '' && f.txtSaveZipcode.value != '')
		{
			f.txtZipCode.value = f.txtSaveZipcode.value;			
		}
	}