function getValue(num)
{
    var noJunk = ""
    var withDollar = ""
    var foundDecimal = 0
    var foundAlphaChar = 0
    num += "";

    if (num == "") { return(0); }
    for (i=0; i <= num.length; i++)
    {
        var thisChar = num.substring(i, i+1);
        if (thisChar == ".")
        {
          foundDecimal = 1;
          noJunk = noJunk + thisChar;
        }
        if ((thisChar < "0") || (thisChar > "9"))
        {
          if ((thisChar != "$") && (thisChar !=".") && (thisChar != ",") && (thisChar != " ") && (thisChar !="")) foundAlphaChar = 1;
        }
        else
 {
    withDollar = withDollar + thisChar
    noJunk = noJunk + thisChar
 }

 if ((thisChar == "$") || (thisChar == ".") || (thisChar == ","))
 {
   withDollar = withDollar + thisChar
 }
  }
     if (foundDecimal) { return parseFloat(noJunk); }
     else if (noJunk.length > 0) { return parseFloat(noJunk); }
     else return 0;
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}