/*
* global variable
*/
var ajaxPopupValue= Array();
var countImage;
var imageValue;
var countImageUrl2='http://www.dds-cad.de/countImage.php?';
var loadImageUrl2='http://www.dds-cad.de/loadImage.php?';
var countImageUrl='';
var loadImageUrl='';
var globalPutArt;
var imageNr=0;
var ajaxPopupObject=null;

/* 
* ajax question 
*/
function ajaxPopupQuestion(putUrl,putArt){  
		globalPutArt = putArt;
		document.getElementById('popupContent').innerHTML='<div style=\"text-align:center;margin:0px;padding:0px;padding-top:130px;\"><img src="img2/indicator.gif" alt="Ajax Indicator" /><div>';
		if(navigator.appName.search("Microsoft") > -1){    
		    ajaxPopupObject = new ActiveXObject("Microsoft.XMLHTTP");
		}
		else{
		    ajaxPopupObject = new XMLHttpRequest();
		}    	    	    	    
	    ajaxPopupObject.open('get',putUrl,true);        	    	    
		ajaxPopupObject.onreadystatechange = ajaxPopupSet;
	    ajaxPopupObject.send(null);   
}	
/* 
* ajax replace
*/
function ajaxPopupSet(){
    if(ajaxPopupObject.readyState==4 && ajaxPopupObject.status == 200){
       	if(globalPutArt=='countImage')
       	{
       		countImage = ajaxPopupObject.responseText;       		
       		document.getElementById('popupCounter').innerHTML = (imageNr+1)+'/'+countImage;
       		putImage();
    	}
       	if(globalPutArt=='putImage')
       	{
       		document.getElementById('popupContent').innerHTML = ajaxPopupObject.responseText;       		
       	}    	
    }
}

/*
* id2, anzahlBilder
*/
function getCountImage()
{
	ajaxPopupQuestion(countImageUrl,'countImage');
}

/*
* put Image
*/
function putImage()
{
	ajaxPopupQuestion(loadImageUrl+'&nr='+imageNr,'putImage');
}

function nextImage()
{
	if((countImage-1)!=imageNr)
	{
		imageNr++;
		getCountImage();
	}
}

function prevImage()
{
	if(imageNr!=0)
	{
		imageNr--;
		getCountImage();
	}	
}