function isValid(theField)
      {
	  		var field=theField;
		   	var Length=field.length;
		  	var ge=false;
	  		var ge1=false;
		  	for(var i=0;i<Length;i++)
	  		{
	  			var theChar=field.substring(i,i+1);
	  			if(theChar=="@")
	  				ge=true;
	  			if (theChar == "." && ge)
	  				ge1=true;
	  		}
		  	if (ge1==false || ge == false)
	  		{
	  			theField.value="";
		  		return true;
	  		}
		  	else
	  	    {
	  	      	return false;
	  	    }
	  	}

function validate() {

if (document.enquiryform.name.value.length==0) {
alert("please enter first your name");
document.enquiryform.name.focus();
return false;
}

if (document.enquiryform.lastname.value.length==0) {
alert("please enter your lastname");
document.enquiryform.lastname.focus();
return false;
}

if (document.enquiryform.email.value.length==0) {
alert("Please enter your email address");
document.enquiryform.email.focus();
return false;
}
	 else if (document.enquiryform.email.value!="" && isValid(document.enquiryform.email.value))
			{
			    alert("Please enter Correct Email ID. E.g. aaa@bbb.com");
			    document.enquiryform.email.focus();
			    return false;
			    }
if (document.enquiryform.study.value.length==0) {
alert("please enter your qualification");
document.enquiryform.study.focus();
return false;
}
if (document.enquiryform.college.value.length==0) {
alert("please enter college details");
document.enquiryform.college.focus();
return false;
}

if (document.enquiryform.address.value.length==0) {
alert("please enter your address");
document.enquiryform.address.focus();
return false;
}
if (document.enquiryform.city.value.length==0) {
alert("please enter city");
document.enquiryform.city.focus();
return false;
}
if (document.enquiryform.state.value.length==0) {
alert("please enter which state");
document.enquiryform.state.focus();
return false;
}

if (document.enquiryform.course.value.length==0) {
alert("Please enter which course you have interested");
document.enquiryform.course.focus();
return false;
}

if (document.enquiryform.select2.value.length==0) {
alert("please select how you know this site ");
document.enquiryform.select2.focus();
return false;
}

document.enquiryform.submit()
return true;
}