function inicializar(){
     var vble=new Array(200);
	 vble=(document.getElementsByTagName("a"));
     for (var i=0; i<vble.length; i++) {
       if(document.getElementsByTagName("a")[i].href.indexOf('.php')!=-1){  
       var y=""+ vble[i]+"";    
       var lang=(document.getElementsByTagName("html")[0].getAttribute("lang")).split('-')[0];
       var x=y.replace(/lang=/g,"lang="+lang); document.getElementsByTagName("a")[i].href=x; 
    
       
   }}
}