var ImgAnz = 0;
var ImgFirst = 0;
var ImgNum = 0;

var ImgId;
var ImgName;

function moreImg(ImgId, ImgName, ImgAnz, ImgFirst){
if (ImgNum == 0) ImgNum = 1;
ImgNum = ImgNum + 1;
if (ImgNum > ImgAnz) ImgNum = 1;
ImgId.src=ImgName+ImgNum+".jpg";
}

function lessImg(ImgId, ImgName, ImgAnz, ImgFirst){
ImgNum = ImgNum - 1;
if (ImgNum < ImgFirst) ImgNum = ImgAnz;
ImgId.src=ImgName+ImgNum+".jpg";
}

function firstImg(ImgId, ImgName, ImgAnz, ImgFirst){
ImgNum = ImgFirst;
ImgId.src=ImgName+ImgNum+".jpg";
}

function lastImg(ImgId, ImgName, ImgAnz, ImgFirst){
ImgNum = ImgAnz;
ImgId.src=ImgName+ImgNum+".jpg";
}

function viewImgNum(ImgTxName, ImgAnz, ImgFirst){
if (ImgNum < ImgFirst) ImgNum = 1;
document.getElementById(ImgTxName).firstChild.nodeValue =ImgNum + " / " + ImgAnz;
}

function enlargeImg(ImgName,nWidth,nHeight,nBorder,ntitel)
{
	if (ImgNum == 0) ImgNum = 1;
	
	NewWindow=window.open("","NeuEins","HEIGHT="+nHeight+",WIDTH="+nWidth+",scrollbars=no,resizable=no,top=5,left=5");
	NewWindow.document.write ("<HTML><HEAD><TITLE>");
	NewWindow.document.write (ntitel);
	NewWindow.document.write ("</TITLE></HEAD>");
	NewWindow.document.write ("<BODY BGCOLOR='white'>");	
	NewWindow.document.write ("<P ALIGN=CENTER>");
	NewWindow.document.write ("<FONT FACE='Arial' SIZE='+2' COLOR='White'><B>");
	
	NewWindow.document.write ("</B></FONT>");
	NewWindow.document.write ("<IMG SRC=");
	NewWindow.document.write (ImgName+ImgNum+"_bg.jpg");
	NewWindow.document.write (">");
	NewWindow.document.write ("</P>");
	NewWindow.document.write ("<center><FORM><INPUT TYPE='button' VALUE='close window' onClick='self.close()'>");
	NewWindow.document.write ("</FORM></CENTER></BODY></HTML>");
	NewWindow.document.write ("</BODY></HTML>");
	NewWindow.document.close();
	return false;
}

