/* File: weightloss.js
**
** This script is a custom API
**
**
*/

// Initialize Local Variables
var isNav, isIE;
var coll = "";
var styleObj = "";

// Date Initialization
var dayName = new Array ("Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday");
var monName = new Array ("January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December");

var now = new Date
// END Date Initialization

// Browser Detection
if (parseInt(navigator.appVersion) >= 4) {
  if (navigator.appName == "Netscape") {
    isNav= true;
  } else { 
    isIE = true
    coll = "all.";
    styleObj = ".style";
  }
}
// END Browser Detection

// Utility Functions
function convertToUpper(field) {
  field.value = field.value.toUpperCase()
}

function isblank(s) {
  for(var i = 0; i < s.length; i++) {
    var c = s.charAt(i);
    if ((c != ' ') && (c != '\n') && (c != '\t')) return false;
  }
  return true;
}

function checkNum(val,text) {
        if ((val == null) || (isNaN(val)) || (val == "") || (val < 0)) {
		alert("Please enter a value for " + text + ".");
                return false
        }
        return true;
}


function rounding(number,decimal) {
	multiplier = Math.pow(10,decimal);
	number = Math.round(number * multiplier) / multiplier;
        return number
}

// END Utility Functions

// Image Swapping
function imgOn (obj, j) {
  if (document.images) {
    document[obj].src = onImgArray[j].src;
  }
}

function imgOff (obj, j) {
  if (document.images) {
    document[obj].src = offImgArray[j].src;
  }
}
// End Image Swapping