/* 
**        ausgelagert, Funktionen fuer Bilderschau    **
*/
var firstPic;
var thisPic;
var lastPic;
var picTypus;

function picStageInit(wieviele) { 
	dies=document.getElementById("myPic");
	hans=dies.src.split("/");
	lastHans=(hans[hans.length-1]);
	myInitVar=lastHans.split(".");
	firstPic=myInitVar[0]*1;
	picTypus=myInitVar[1];
	thisPic=firstPic;
	lastPic=firstPic + wieviele -1;
	//alert (firstPic+"---"+lastPic+"---"+picTypus);
}


function myPicMinus() { 
	dies=document.getElementById("myPic");
	if (thisPic > firstPic){
		thisPic -=1;
	} else {
		thisPic = lastPic
	}
	dies.src="NAP/1/"+thisPic+"."+picTypus;
	daisy=document.getElementById("countPic");
	daisy.innerHTML=""+(thisPic+1)+"|"+(lastPic+1);	
}

function myPicPlus() { 
	dies=document.getElementById("myPic");
	if (thisPic < lastPic){
		thisPic +=1;
	} else {
		thisPic = firstPic
	}
	dies.src="NAP/1/"+thisPic+"."+picTypus;
	daisy=document.getElementById("countPic");
	daisy.innerHTML=""+(thisPic+1)+"|"+(lastPic+1);	
}