//checknewacc.js
//firstname, lastname, email, login, passwd, passwd2, url
function checknewacc(v1,v2,v3,v4,v5,v6,v7,v8){
if(!(v1&&v2&&v3&&v4&&v5&&v6&&v7&&v8)){
alert("Error: You must fill all required fields.\nPlease, make input again...");
return false; } 
if(v3.indexOf('@',1) == -1 || v3.indexOf('.',3)==-1){
alert("Error: You must enter valid email address to send order.\nPlease, make input again...");
return false; } 
if(v5!=v6) { 
alert("Error: Passwords must be identical.\nPlease, make input again...");
return false; 
}
if(v5.length<4) { //Here you can change minimal password length: now is 4.
alert("Error: Password must be at least 4 characters.\nPlease, make input again...");
return false; 
}
if(v4==v5) {
alert("Error: Username and Password must be different.\nPlease, make input again...");
return false;
}
if(v7=="http://"||v7.indexOf('.',6)==-1) {
alert("Error: Wrong Url.\nPlease, make input again...");
return false;
}
}