function contactform() {

    var name = document.getElementById("name").value;    
	var email = document.getElementById("email").value;		
	var contact_no = document.getElementById("contact_no").value; 
    var enquiry = document.getElementById("enquiry").value;
	
    var focus = "";
    var errormsg = "";
	if(name.length == 0 ){
        errormsg+='Please enter your Name!\n';
        if (focus=="") focus = "name";
        document.getElementById("name").style.backgroundColor = '#AD3333';
    }
	if(email==''){
        errormsg+='Please enter your Email Address!\n';
        if (focus=="") focus = "email";
        document.getElementById("email").style.backgroundColor = '#AD3333';
    }
	if(email != ''){
        if (email.indexOf('@')==-1||email.indexOf('.')==-1||email.indexOf('@.')!=-1){
            errormsg+="Please provide a valid Email Address!\n";
            if (focus=="") focus = "email";
            document.getElementById("email").style.backgroundColor = '#AD3333';
        }
    }	
	if(contact_no.length==0){
        errormsg+='Please enter your Contact Number!\n';
        if (focus=="") focus = "contact_no";
        document.getElementById("contact_no").style.backgroundColor = '#AD3333';
    }
    else if(contact_no.length > 8){
        errormsg+='Please enter no more than 8 numbers for your Contact Number!\n';
        if (focus=="") focus = "contact_no";
        document.getElementById("contact_no").style.backgroundColor = '#AD3333';
    }
	else if(contact_no.length < 8){
        errormsg+='Please enter at least 8 numbers for your Contact Number!\n';
        if (focus=="") focus = "contact_no";
        document.getElementById("contact_no").style.backgroundColor = '#AD3333';
    }
    else if (!/^-?\d+$/.test(contact_no)){
        errormsg+='Please enter only numbers for your Contact Number!\n';
        if (focus=="") focus = "contact_no";
        document.getElementById("contact_no").style.backgroundColor = '#AD3333';
    }
	if(enquiry.length==0){
        errormsg+='Please enter Message!\n';
        if (focus=="") focus = "enquiry";
        document.getElementById("enquiry").style.backgroundColor = '#AD3333';
    }
    
    if (errormsg!= ""){
        document.getElementById(focus).focus();
        alert(errormsg);
        return false;

    }else{
        return true;
    }
}