function tipafriend(iPageID, iLangID) {
	var strHost = "www.odeum.com";
	var iPageID = iPageID;
	var iLangID = iLangID;
	var iWidth 					= 540;
	var iHeight 				= 430;
	var strWinName = "TipAFriendWin";
	var openWin = true;
	var strURL = "http://"+strHost+"/scripts/tipafriend.php?iPageID="+iPageID+"&iLangID="+iLangID+"";
	var popleft = (screen.width - iWidth) / 2;
	var poptop = (screen.height - iHeight) / 2;
	
	var strParameters 	= "width=" + iWidth + ",height=" + iHeight + 
						",resizable=0,scrollbars=0,status=0,left="+
						popleft+",top="+poptop+",screenX="+popleft+
						",screenY="+poptop+",toolbar=0";

	imageSelectWin 	= window.open(strURL, strWinName, strParameters);
	imageSelectWin.focus();
}

function evalForm() {
	var thisForm = document.forms["mailform"];
	var iResult = 1;
	
	if (iResult) {
		for (var i = 0; i < arrMandatoryFields.length; i++) {
			if (!thisForm.elements[arrMandatoryFields[i][1]].value.length) {
				alert(strReplace(strEmptyField, '%s', arrMandatoryFields[i][0]));
				thisForm.elements[arrMandatoryFields[i][1]].focus();
				iResult = 0;
				break;
			}	
		}
	}

	if (iResult)
		thisForm.submit();
}

/**************************************************************************************
*     strReplace() -     replaces the string strPattern with strReplacement
*                        in strHaystack
***************************************************************************************/

function strReplace(strHaystack, strPattern, strReplacement) {
    var strTemp = "";
    if (strHaystack.indexOf(strPattern) != -1) {
        for (var i = 0; i < strHaystack.length; i++) {
            if (strHaystack.substring(i, i + strPattern.length) == strPattern) {
                strTemp += strReplacement;
                i += (strPattern.length - 1);
            } else {
                strTemp += strHaystack.charAt(i);
            }
        }
    } else {
        strTemp = strHaystack;
    }
    return strTemp;
}