Not sure about plugin but this possible using CrmService:-
//*************************
//Create Opportunity
//*************************
var oName = oFirstName + " " + oLastName + " from " + oCompanyName + " on " + oDate;
var xml = "<?xml version='1.0' encoding='utf-8'?>" +
"<soap:Envelope xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/'" +
" xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'" +
" xmlns:xsd='http://www.w3.org/2001/XMLSchema'>" +
GenerateAuthenticationHeader() +
"<soap:Body>" +
"<Create xmlns='http://schemas.microsoft.com/crm/2007/WebServices'>" +
"<entity xsi:type='opportunity'>" +
"<name>" + oName + "</name>" +
"<new_accountid>" + AccountName + "</new_accountid>" +
"<campaignid>" + oCampaign + "</campaignid>" +
"<customerid type='contact'>" + ContactName + "</customerid>" +
"<transactioncurrencyid>" + oCurrency + "</transactioncurrencyid>" +
"<pricelevelid>" + oPricelevel + "</pricelevelid>" +
"<new_handsetsrequired>" + oHSRequired + "</new_handsetsrequired>" +
"<new_numberofexistinghandsets>" + oHSHave + "</new_numberofexistinghandsets>" +
"</entity>" +
"</Create>" +
"</soap:Body>" +
"</soap:Envelope>";
// Prepare the xmlHttpObject and send the request.
var xHReq = new ActiveXObject("Msxml2.XMLHTTP");
xHReq.Open("POST", "/mscrmservices/2007/CrmService.asmx", false);
xHReq.setRequestHeader("SOAPAction",
"http://schemas.microsoft.com/crm/2007/WebServices/Create");
xHReq.setRequestHeader("Content-Type", "text/xml; charset=utf-8");
xHReq.setRequestHeader("Content-Length", xml.length);
xHReq.send(xml);
var resultXml = xHReq.responseXML;
//debugger;
var errorCount = resultXml.selectNodes('//error').length;
if (errorCount != 0) {
var msg = resultXml.selectSingleNode('//description').nodeTypedValue;
alert(msg);
} else {
var oOpportunity = resultXml.selectSingleNode("//CreateResult");
var URL = "/sfa/opps/edit.aspx?id={" + oOpportunity.nodeTypedValue + "}";
//alert(URL);
window.open(URL, 'Opportunity', 'width=900, height=600');
}
var OppId = "{" + oOpportunity.nodeTypedValue + "}";
var lookupItem = new Array();
lookupItem[0] = new LookupControlItem(OppId, 3, oName);
crmForm.all.new_opportunityid.DataValue = lookupItem;
}
//*********************************
//End of Create Contact Account Opportunity
//*********************************
Regards Faisal
