function validate(){
    if(document.getElementById("name").value == ""){
        alert("Please the enter your name");
		return false;
    }

    if(document.getElementById("mobile_no").value == ""){
         alert("Please enter mobile number");
         return false;
    }else{
         var mobile_no = document.getElementById("mobile_no").value;
         var regExp = new RegExp("^[0-9]{10}$");
         if(!regExp.test(mobile_no)){
             alert("Please enter a valid mobile number")
             return false;
         }
    }


    if(document.getElementById("email").value == ""){
         alert("Please enter a valid email address");
         return false;
    }
    if(document.getElementById("college").value == ""){
         alert("Please enter college name");
         return false;
    }

    return true;

}