function enviar_c(){
var J_err;
J_err=false;
var mess0;
var mess1;
mess1="";
mess0="\nPlease verify your information:"+
      "\n_________________________________";
        if(document.frm_c.name.value.length == 0){
            J_err=true;
            mess1 +="\n- Name";
        }    

        if(document.frm_c.email.value.length == 0 || document.frm_c.email.value == null || echeck(document.frm_c.email.value)==false){
			J_err=true;
            mess1 +="\n- Email";
		}
		
		if(document.frm_c.message.value.length == 0){
		    J_err=true;
            mess1 +="\n- Message";
		}		
        if(J_err==false){
	    document.frm_c.action="send.asp";
	    document.frm_c.method="Post";
	    document.frm_c.submit();
		alert("Message sent successfully");
        }    
        else{
           alert(mess0+"\n "+mess1);
        }
}


function mail(texto){ 
    var mailres = true;             
    var cadena = "abcdefghijklmnñopqrstuvwxyzABCDEFGHIJKLMNÑOPQRSTUVWXYZ1234567890@._-"; 
     
    var arroba = texto.indexOf("@",0); 
    if ((texto.lastIndexOf("@")) != arroba) arroba = -1; 
     
    var punto = texto.lastIndexOf("."); 
                 
     for (var contador = 0 ; contador < texto.length ; contador++){ 
        if (cadena.indexOf(texto.substr(contador, 1),0) == -1){ 
            mailres = false; 
            break; 
     } 
    } 

    if ((arroba > 1) && (arroba + 1 < punto) && (punto + 1 < (texto.length)) && (mailres == true) && (texto.indexOf("..",0) == -1)) 
     mailres = true; 
    else 
     mailres = false; 
                 
    return mailres; 
}



function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){		   
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    return false
		 }		
		 if (str.indexOf(" ")!=-1){
		    return false
		 }

 		 return true					
	}