function banner(which){
	sum = 0;
	
	for(i=0; i<which.length; i+=4){
		sum += parseInt(which[i]);
	}
	
	zufall			= Math.floor(sum*Math.random());
	hit					= 0;
	banner			=	"";
	statustext	=	"";
	target			= "";
	onclick			= "";
	
	for(i=0; i<which.length; i+=4){
		hit += parseInt(which[i]);
		
		if(hit>zufall){
			banner			= rootpath + which[i+1];
			statustext	= which[i+2];
			link				= which[i+3];
			target			= (link.indexOf("http")!=-1) ? "_blank" : "_parent";
			
			if (link.indexOf("javascript:")!=-1){
				onclick	= link;
				link		= "javascript://";
				target	= "_self";
			}
			
			break;
		}
	}
	return banner;
}