// JavaScript Document
function checkform(){
		var obj=document.form1;
		if(obj.name1.value==""){
			alert(" first name is empty!");
			obj.name1.focus();
			return false;			
			}else if(obj.name2.value==""){
				alert("family name is empty!");
				obj.name2.focus();
				return false;
			}else if(obj.email.value.indexOf("@")==-1){
				alert("email is error!");
				return false;
			}else{
			   alert("successful");	
			}		
		
}