function validate_email(email)
  {
  //alert("calling from validating email");
    
	 //var pat1="^([_a-zA-Z])([_a-zA-Z0-9]+)(\.[_a-z0-9-]+)?@[a-zA-Z][a-zA-Z0-9]+(\.[a-zA-z]{2,3}){1,2}$";
	 var pat1="^[a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\.([a-zA-Z]{2,4})$";
	 
    var epat=new RegExp(pat1);//(pat,"i");
  
      
	  if(email.length==0||email=="")
             return false;	  
      
	  if(epat.test(email)&&(email.length>3))
        return true;
     else
       return false; 

   }
	
	
function validate_name(name)
{
//alert("calling from validaating name");

var pat="^[a-zA-Z]+$";

var rx=new RegExp(pat);

 if((name.length>2)&&rx.test(name))
   return true;
 else return false;
}

 var formname="userform";
function check_form(formname)
{
   var fname=document.forms[formname].fName.value;
	var lname=document.forms[formname].lName.value;
	var email=document.forms[formname].email.value;
	var file=document.forms[formname].fileatt.value;
	var consent=document.forms[formname].consent.checked;
	


		    var valid=false;
     if(validate_name(fname)&&validate_name(lname)&&validate_email(email)&&(file.length>1)&&(document.forms[formname].consent[0].checked))
	         valid =true;

				msg=""; 
		if(!validate_name(fname))
		msg+="\nPlease enter your first name.";
		if(!validate_name(lname))
		msg+="\nEnter your last name.";
		if(!validate_email(email))
		msg+="\nPlease enter a valid email.";
		if(!(file.length>0))
		msg+="\nPlease browse for a CV to be uploaded.";
		if(!document.forms[formname].consent[0].checked)
		msg+="\nYou must accept our terms and conditions.";
		//alert("ab kya");
if(!valid)
 alert(msg);
 return valid;
		
		}