/***************************************************************************************************************************
 
   iApps (interactive Applications) JS Library
   uif - User interface functions.
   Version 1.1

   IMP DATE: 27/04/2007
   LAST MODIFIED: 02/07/2007
   AUTHOR: OLIVER AMMANN

***************************************************************************************************************************/



// *** UI BEHAVIOUR FUNCTIONS ***

// Begins showhide function for booking module

function showHide(showId,bHide) {

    if (document.getElementById) { // DOM3 = IE5, NS6
    
        if (!bHide && document.getElementById(showId).style.visibility == "hidden") {
	    document.getElementById(showId).style.visibility = 'visible';
	}
	else if(bHide) {
            document.getElementById(showId).style.visibility = 'hidden';			
        }
    } 
    else {   
    
        if (document.layers) {	
        
	    if (bHide && document.showId.visibility == "hidden") {
	    	document.showId.visibility = 'visible';
	    }
	    else if(!bHide) {
	 	document.showId.visibility = 'hidden';
	    }
        } 
        else {
        
	    if (bHide && document.all.showId.style.visibility == "hidden") {
	        document.all.showId.style.visibility = 'visible';
	    }
	    else if(!bHide) {
	        document.all.showId.style.visibility = 'hidden';
	    }
	}
    }
}


function showHideReturnDate(bShow) {
				
    var returnCalendarId = "returnCalendar";
    var returnMonthId = "returnMonth";
    var returnDayId = "returnDay";
    var returnTimeId = "returnTime";
    var returnDateLabelId ="retDate";
    var returnTimeErr = "rtimeErr";
    showHide(returnTimeErr,bShow); 		
    showHide(returnDateLabelId,bShow);    
    showHide(returnCalendarId,bShow);
    showHide(returnMonthId,bShow);
    showHide(returnTimeId,bShow);
    showHide(returnDayId,bShow);     

}

function closeUiElement(formName, elName) {    
     
    formName.value = "";
    showHide(elName,true);

}


// Determines UI state and displays previous selection on page load

function detectUiState(getTripType, getPromoCdeState) {

    if (getTripType != null) {
   
        // Check trip type selection 
        if (getTripType[1].checked) {
            showHideReturnDate(true);         

        }
    }

    if (getPromoCdeState != null) {    
        // Check promo code value and restore if applicable 
        if (getPromoCdeState != "") {
            showHide('discountCode',false);
        }
    }

}


// ***  BEGINS DYNAMIC ERROR OUTPUT FUNCTIONS ***


// Create, output and clear error messages
// Author O.Ammann

function errorCall() {

    var errorCallObj = new Object();       
    
    function setMessageHeader(divName, msgTitle, classAttr, iconSrc) { 
          
        var errContainer = document.getElementById(divName);                   
        var image = document.createElement("img");         
        var errImgSpan = document.createElement("span");        
        var errTitleSpan = document.createElement("span");
        var lineBreak = document.createElement("br");               
        var msgTitle = document.createTextNode(msgTitle);

        errImgSpan.setAttribute('name', 'es');
        errTitleSpan.setAttribute('name', 'es');         
        
        errContainer.className = classAttr;                
        errTitleSpan.appendChild(msgTitle);
        errTitleSpan.appendChild(lineBreak);          
        errTitleSpan.style.fontWeight = "bold";        
        errTitleSpan.className = "SFErrHead"; 
        image.src = iconSrc;
        errImgSpan.appendChild(image);               
        errContainer.appendChild(errImgSpan); 
        errContainer.appendChild(errTitleSpan);   
                 
    }

    function setMessage(divName, SFError) {
                
        var errContainer = document.getElementById(divName);        
        var lineBreak = document.createElement("br");        
        var errorSpan = document.createElement("span");    
        var errorMessage = document.createTextNode(SFError);

        errorSpan.setAttribute('name', 'es');        
                
        errorSpan.className = "SFErrMsg";                  
        errorSpan.appendChild(errorMessage);
        errorSpan.appendChild(lineBreak);                
        errContainer.appendChild(errorSpan);        
        
    }
    
    function clearError(elId, elType) { 
       
       var errContainer = document.getElementById(elId);
       var els = document.getElementsByTagName(elType);
               
       for (var i=els.length-1; i >= 0; i--) {
           /** Fix for span tag bug added 02/07/2007 **/                         
           if (elType == 'span') {
               curEl = els.item(i); 
               attr = curEl.getAttribute('name');               
               if (attr == 'es') {                              	
                   els[i].parentNode.removeChild(els[i]);
               }
           } else {
               els[i].parentNode.removeChild(els[i]);
           } 
                                      
       }
       
       if (errContainer.className != "") {       
          errContainer.className="";
       }
       
    }

    function setAlert(getId, iconSrc) {

        var elId = document.getElementById(getId);
        var image = document.createElement("img");
        var imgLabel = document.createElement("label");                
        
        image.src = iconSrc;
        imgLabel.className = "iconAlert";        
        imgLabel.appendChild(image);  
        
        var parent = elId.parentNode;
        parent.insertBefore(imgLabel, elId);        

    }     
    
    errorCallObj.setMessageHeader = setMessageHeader;
    errorCallObj.setMessage = setMessage;    
    errorCallObj.clearError = clearError;
    errorCallObj.setAlert = setAlert; 
    
    return errorCallObj;

}

fsError = new errorCall();