function ContactFormValidation(){
    var strFormName     = "";
    var strFormURL      = "";
    var strFormEmail    = "";
    var strFormDetails  = "";
    var strMissingFields = "";
    strFormName = document.getElementById('name').value;
    strFormEmail = document.getElementById('email').value;
    strFormURL  = document.getElementById('url').value;
    strFormDetails  = document.getElementById('details').value;
    
    if(strFormName == ""){
        strMissingFields += "Please enter your Name\n";
    }
    if(strFormURL == ""){
        strMissingFields += "Please enter your website address\n";
    }
    if(strFormEmail == ""){
        strMissingFields += "Please enter your email address\n";
    }else{
        var filter = /^([a-zA-Z0-9_.-])+@(([a-zA-Z0-9-])+.)+([a-zA-Z0-9]{2,4})+$/;
        if (!filter.test(strFormEmail)) {
            strMissingFields += "Please enter a valid email address\n";
        }
    }
    
    if(strFormDetails == ""){
        strMissingFields += "Please enter the details of your enquires\n";
    }
    
    if(strMissingFields != ""){
        alert("Please correct the following\n"+strMissingFields+"\n");
        return false;
    }else{
        return true;
    }
    
}