function limitText(limitField, limitNum) 
{

	if(limitField.value.length >limitNum - 1)
	{
		return false;
	}
	else
	{ 
		return true;
	} 
}

function preventPaste(limitField,limitNum)
{

	var CanInsertLength; 
	var sData = window.clipboardData.getData("Text");
	var newData ; 

	CanInsertLength = limitNum - limitField.value.length ; 

	if(CanInsertLength <= 0)
	{
		return false;
	}
	else
	{
		newData = sData.substr(0,CanInsertLength);
		window.clipboardData.setData("Text",newData);
		return true; 
	} 

}


function isEmpty(s)
{   return ((s == null) || (s.length == 0))
}

function trim(s) {
    var m = s.match(/^\s*(\S+(\s+\S+)*)\s*$/);
    return (m == null) ? "" : m[1];
}

// -----------------------------------------------------------------------------------
// Function isEmailAddress() 
// This function validates a single email address string. 
// Parameters:
//	s - string containing email
//  emptyOK (optional default=true) - true if it is OK if the field is empty. 
// Returns: false if not a valid email address, otherwise true
// -----------------------------------------------------------------------------------
function isEmailAddress(stremail)
{   if (isEmpty(stremail)) 
		if (isEmailAddress.arguments.length == 1) return true;
		else return (isEmailAddress.arguments[1] == true);
    else {

		// Check for no @
		var strindexAt = stremail.indexOf("@",0);
		if (strindexAt==-1) return false;
		// Check for whitespace
		if (stremail.indexOf(' ',0)!=-1) return false;
		// Check for invalid characters
		if (areCharsInBag(stremail, ':;')) return false;
		// Check for start with @
		if (strindexAt < 1) return false
		else{
			var strSubString= stremail.substring(strindexAt+1,stremail.length);
			if (strSubString.indexOf("@",0)!= -1) return false;
			strdot=strSubString.indexOf(".",0);
			// There must be atleast one period in the email
			if (strdot == -1) return false;
			// There must be atleast one character in between the @ and period
			if (strdot < 1) return false;
			strafterdot=strSubString.substring(strdot+1,strSubString.length);
			// There must be atleast two characters after the period
			if(strafterdot.length < 2) return false;

		}	
    }
    return true;
}

function areCharsInBag(s, bag)
{
	var i;
	
    // Search through string's characters one by one.
  	// If Character is in bag, return true.
    for (i = 0; i < s.length; i++)
    {
        // Check that current character isn't in bag.
        var c = s.charAt(i);
        if (bag.indexOf(c) != -1) return true;
    }
    return false;
}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}