function privacypolicy(){
        vPi = (screen.availWidth - 500)/2
	      vPs = (screen.availHeight - 350)/2
	      var vp = window.open("privacypolicy.php","recomendar","width=500,height=350,top="+vPs+",left="+vPi+",scrollbars=yes")
      }
      function recomienda(){
	      vPi = (screen.availWidth - 500)/2;
	      vPs = (screen.availHeight - 350)/2;
	      var vr = window.open("recommend.php","recomendar","width=500,height=350,top="+vPs+",left="+vPi+",scrollbars=yes");
      }
      
      function favoritos(){
      	if (window.sidebar){ // firefox
          window.sidebar.addPanel("SavvyByte - A new basic element for your business", "http://www.savvybyte.com","");
        }else if(document.all){ //MSIE
          window.external.AddFavorite('http://www.savvybyte.com','SavvyByte - A new basic element for your business');
        }else{
          alert("Sorry, your browser doesn't support this function");
        }
      }
      
      function paginicio(cual){
      	if (window.sidebar){ // firefox
      	  alert("Sorry, your browser doesn't support this function");
      	}else if(document.all){ //MSIE
	        cual.style.behavior='url(#default#homepage)';
      	  cual.setHomePage('http://www.savvybyte.com');
      	}else{
          alert("Sorry, your browser doesn't support this function");
        }
      }
      
      function imprime(){
      	parent.fprinter.focus();
        parent.fprinter.print();
      }     
      
      function validate(){
      	if(document.sm.name.value == ""){
      		alert('Your name is required.\nPlease complete the form fild and retry');
      		document.sm.name.focus();
          return false;
      	}
      	else{
          validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
          strEmail = document.sm.mail.value;
      
          if (strEmail.search(validRegExp) == -1){
            alert('A valid e-mail address is required.\nPlease amend and retry');
            document.sm.mail.focus();
            return false;
          } 
          else{
            return true; 
          }
        }
      }

     /* function window.onafterprint(){
	      document.imprenta.focus();
      }*/