/**********************************************************************/
/* Funktion laed Images vor          																  */	
/**********************************************************************/
function preload_images() 
{ 
  var d=document; 
	if(d.images)
	{ 
		if(!d.MM_p) d.MM_p=new Array();
   	var i,j=d.MM_p.length,a=preload_images.arguments; 
		for(i=0; i<a.length; i++)
		{
   		if (a[i].indexOf("#")!=0)
			{ 
				d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];
			}
		}
	}
}		

/**********************************************************************/
/* Funktion oeffnet ein	Pop-Up-Fenster							             			*/	
/**********************************************************************/
function open_window(url, w, h, winname, scroll, resize)  
{
	var winleft = (screen.width - w) / 2; 
	var wintop = (screen.height - h) / 2;
	var winprops = "height="+h+",width="+w+",top="+wintop+",left="+winleft+",scrollbars="+scroll+",resizable="+resize;
	//var windowname = "-"+(Math.random()*99999999);
	var win = window.open(url, winname, winprops);
	if(window.focus) 
	{
		win.focus();
	}
}

/**********************************************************************/
/* Funktion oeffnet ein	Pop-Up-Fenster							             			*/	
/**********************************************************************/
function fontsize_select(_file)
{
document.write("<div id=\"fontsize\">");
document.write("<div class=\"text\">Schriftgr&ouml;&szlig;e:</div>");
document.write("<div class=\"buttons\"><a href=\""+_file+"");
document.write("?fontsize=s\"><img src=\"pix/button_minus_grau.gif\" alt=\"verkleinern\" title=\"Schriftgr&ouml;&szlig;e verkleinern\" /></a><a href=\""+_file+"");
document.write("?fontsize=std\"><img src=\"pix/button_gleich_grau.gif\" alt=\"zur&uuml;cksetzen\" title=\"Schriftgr&ouml;&szlig;e zur&uuml;cksetzen\" /></a><a href=\""+_file+"");
document.write("?fontsize=l\"><img src=\"pix/button_plus_grau.gif\" alt=\"vergr&ouml;&szlig;ern\" title=\"Schriftgr&ouml;&szlig;e vergr&ouml;&szlig;ern\" /></a></div>");
document.write("");
document.write("</div>");
}


function scroll_now()
{
	if(scroll_pos>document.getElementById("slideshow_container").scrollLeft)
	{	
		_abstand = (scroll_pos - document.getElementById("slideshow_container").scrollLeft) / steps;		
		_abstand = Math.round(_abstand);			
		if(_abstand<1) _abstand = 1;
		document.getElementById("slideshow_container").scrollLeft=document.getElementById("slideshow_container").scrollLeft+_abstand;		
		setTimeout("scroll_now();",10);						
	}

	if(scroll_pos<document.getElementById("slideshow_container").scrollLeft)
	{			
		_abstand = (document.getElementById("slideshow_container").scrollLeft - scroll_pos) / steps;		
		_abstand = Math.round(_abstand);
		if(_abstand<1) _abstand = 1;
		document.getElementById("slideshow_container").scrollLeft=document.getElementById("slideshow_container").scrollLeft-_abstand;		
		setTimeout("scroll_now();",10);			
	}
}

function do_scroll(_action)
{
	if(make_right_click==true)
	{

	akt_pic = akt_pic + _action;		

	if(akt_pic<3) akt_pic=3;
	
	if(akt_pic==anz_pics) akt_pic=anz_pics-1;
	

	
	if(akt_pic>=(anz_pics-1))
	{
		document.getElementById("bu_weiter").style.visibility='hidden';
		make_right_click = false;
	}else{
		document.getElementById("bu_weiter").style.visibility='visible';
		make_right_click = true;		
	}
	
	if(akt_pic==3)
	{
		document.getElementById("bu_zurueck").style.visibility='hidden';
	}else{
		document.getElementById("bu_zurueck").style.visibility='visible';
	}
		
	
	if(akt_pic<anz_pics)
	{	
		scroll_pos =  scroll_pos + (breite * _action);
		if(scroll_pos<0) scroll_pos = 0;
		scroll_now();
	}
	
	}
}