function setlanguage(str){
   var ls = location.search;
   var lh = location.href; 
   var ind=lh.indexOf(".cfm");
   var cfm = '';
   if(ind==-1){cfm='index.cfm?'}
	if(ls==''){ls=cfm+''};
	    var index=ls.indexOf("lang");
        var pos=index+5;
        var car=ls.charAt(pos);
      if (index==-1){
	             if (str=='nl'){
				    location.search=ls+"&lang=nl";
			     }else{
				      if (str=='en'){
				         location.search=ls+"&lang=en";
				      }else{
				            if (str=='fr'){
				               location.search=ls+"&lang=fr";
			                              }
							}
					  }
		}else{

	 switch(str){
		case 'nl': 
		               if(car=='f'){
					      location.search=ls.replace("=fr","=nl")
					   }else{
					      location.search=ls.replace("=en","=nl")} 
						  break;
		case 'fr':
		              if(car=='n'){
				          location.search=ls.replace("=nl","=fr")
					  }else{ 
						  location.search=ls.replace("=en","=fr")}
						  break;
		case 'en':
		              if(car=='n'){
				          location.search=ls.replace("=nl","=en")
					  }else{ 
						  location.search=ls.replace("=fr","=en")}
						  break;
		default:break;
	              }
         }	
}