function swapImgRestore() { //v2.0
  if (document.swapImgData != null)
    for (var i=0; i<(document.swapImgData.length-1); i+=2)
      document.swapImgData[i].src = document.swapImgData[i+1];
}

function preloadImages() { //v2.0
  if (document.images) {
    var imgFiles = preloadImages.arguments;
    if (document.preloadArray==null) document.preloadArray = new Array();
    var i = document.preloadArray.length;
    with (document) for (var j=0; j<imgFiles.length; j++) if (imgFiles[j].charAt(0)!="#"){
      preloadArray[i] = new Image;
      preloadArray[i++].src = imgFiles[j];
  } }
}

function swapImage() { //v2.0
  var i,j=0,objStr,obj,swapArray=new Array,oldArray=document.swapImgData;
  for (i=0; i < (swapImage.arguments.length-2); i+=3) {
    objStr = swapImage.arguments[(navigator.appName == 'Netscape')?i:i+1];
    if ((objStr.indexOf('document.layers[')==0 && document.layers==null) ||
        (objStr.indexOf('document.all[')   ==0 && document.all   ==null))
      objStr = 'document'+objStr.substring(objStr.lastIndexOf('.'),objStr.length);
    obj = eval(objStr);
    if (obj != null) {
      swapArray[j++] = obj;
      swapArray[j++] = (oldArray==null || oldArray[j-1]!=obj)?obj.src:oldArray[j];
      obj.src = swapImage.arguments[i+2];
  } }
  document.swapImgData = swapArray; //used for restore
}

function ValidateForm(frm) {
	return reqField(frm.contact_name, "Contact Name is required.") &&
		   reqField(frm.address, "Address is required.") &&
		   reqField(frm.city, "City is required.") &&
		   reqField(frm.zip_code, "Zip Code is required.") &&
		   reqField(frm.phone, "Phone Number is required.") &&
		   reqField(frm.services, "In order to better assist you please provide your question or comments.");
}
	
function reqField(objElement, txtMessage){
	var txtField = Trim(objElement.value);
	
	if (txtField.length == 0){
		alert(txtMessage);
		objElement.focus();
		return false;
	}
	
	return true;
}

function Trim(String) {
	if (String == null) {
		return (false);
	}
	return String.replace(/(^\s+)|(\s+$)/g,"");
}