function validateform()
{
var field1=document.getElementById("nambre").value;
var field2=document.getElementById("empresa").value;

var field4=document.getElementById("contacto").value;
var field5=document.getElementById("comentarios").value;
var email=document.getElementById("email").value;
var field7=document.getElementById("ciudad").value;


	
var field1;
field1=document.getElementById("nambre").value;
if(field1==''){
var result1=false;
}
var field2;
field2=document.getElementById("empresa").value;
if(field2==''){
var result2=false;
}

var field4;
field4=document.getElementById("contacto").value;
if(field4==''){
var result4=false;
}
var field5;
field5=document.getElementById("comentarios").value;
if(field5==''){
var result5=false;
}
var field7;
field7=document.getElementById("ciudad").value;
if(field7==''){
var result7=false;
}	
	var txtemail=document.getElementById("email").value;
	
	
	var atpos=txtemail.indexOf("@");
	var dotpos=txtemail.lastIndexOf(".");
	
  
	if(result1==false)
	{       
		alert('Please Enter Your nambre');
		//document.getElementById("name").style.border="1px solid red";
		//return false;
	}
	

	else if(result2==false)
	{
		alert('Please Enter Your empresa');
		//document.getElementById("phone").style.border="1px solid red";
		//return false;
	}
  else if(result7==false)
	{
		alert('Please Enter Your ciudad');
		//document.getElementById("phone").style.border="1px solid red";
		//return false;
	}
else if(result4==false)
	{
		alert('Please Enter Your contacto');
		//document.getElementById("phone").style.border="1px solid red";
		//return false;
	}


	
	else if(atpos<1 || dotpos<atpos+2 || dotpos+2>=txtemail.length)
  	{
		alert('Please Enter Valid Email Address');
		//document.getElementById("email").style.border="1px solid red";
		//return false;
 	}

	else if(result5==false)
	{
		alert('Please Enter Your comentarios');
		//document.getElementById("phone").style.border="1px solid red";
		//return false;
	}
  
	else{
	
		
		var dataString = 'action=mailsend&nambre='+field1+'&empresa='+field2+'&ciudad='+field7+'&contacto='+field4+'&email='+email+'&comentarios='+field5;
		
		
		$.ajax ({
		type: "GET",
		url:"contact.php",
		data:dataString,
		success:function(data,textStatus) {
		
		if(textStatus=='success'){
			
		   	alert("Gracias por contactar con nosotros !");}
    else{
        alert("Se ha detectado un error al enviar el correo!");}
		document.getElementById("nambre").value="";
      document.getElementById("empresa").value="";
     
     document.getElementById("contacto").value="";
    document.getElementById("comentarios").value="";
    document.getElementById("email").value="";
    document.getElementById("ciudad").value="";
    
		}});
	}

//Validation for Email Address

	

}