function wopen(link,wi,he) {
	
	var width=wi; var height=he;
	var l=(screen.availWidth-width)/2;
	var t=(screen.availHeight-height)/2;
    wincom=window.open(link ,"oswin","toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=0,width="+wi+",height="+he+",screenX="+l+",screenY="+t+",left="+l+",top="+t);
    
    if (wincom) {
    	wincom.focus() ;
	}
}


function changebutton(s) {
	
    window.Bestellung.obutton.value = "Bitte warten ... und diesen Button nur 1x klicken !!!!";
    
    if (SEND==1) {
    	
    	alert("Sie haben die Bestellung bereits abgeschickt, bitte warten Sie auf Antwort des Shop-Servers !") ;
    	return false ;
    	
    } else {
    	
    	SEND=1 ;
    	return true ;
    }
}


function fielddel(f) {

	if (f.value == f.defaultValue) {
	
		f.value = "" ;
	}
}


function fieldset(f) {

	if (f.value == "") {
		
		f.value = f.defaultValue ;
	}
}


function fieldemp(f) {

	if (f.sbeg.value == f.sbeg.defaultValue) {
		
		f.sbeg.value = "" ;
	}
}

function checkBrowser(){
	this.ver=navigator.appVersion
	this.dom=document.getElementById?1:0
	this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0;
	this.ie4=(document.all && !this.dom)?1:0;
	this.ns5=(this.dom && parseInt(this.ver) >= 5) ?1:0;
	this.ns4=(document.layers && !this.dom)?1:0;
	this.bw=(this.ie5 || this.ie4 || this.ns4 || this.ns5)
	return this
}
bw=new checkBrowser()

function showHide(div,nest){
	obj=bw.dom?document.getElementById(div).style:bw.ie4?document.all[div].style:bw.ns4?nest?document[nest].document[div]:document[div]:0;
	if(obj.visibility=='visible' || obj.visibility=='show') obj.visibility='hidden'
	else obj.visibility='visible'
}

function show(div,nest){
	obj=bw.dom?document.getElementById(div).style:bw.ie4?document.all[div].style:bw.ns4?nest?document[nest].document[div]:document[div]:0;
	obj.visibility='visible'
}

function hide(div,nest){
	obj=bw.dom?document.getElementById(div).style:bw.ie4?document.all[div].style:bw.ns4?nest?document[nest].document[div]:document[div]:0;
	obj.visibility='hidden'
}