{!REQUIRESCRIPT("/soap/ajax/23.0/connection.js")}
sforce.connection.sessionId = "{!$Api.Session_ID}";

var l = new sforce.SObject("Lead");
l.id = "{!Lead.Id}";


var result = sforce.connection.update([l]);

if (result[0].getBoolean("success"))
{
// Refresh window
window.location = "/lead/leadmergewizard.jsp?retURL=%2F{!Lead.Id}&id={!Lead.Id}&p1=0&p2=0&p3=1&p4=1&p5=0&p6=1";
}
else
{
alert("Error saving lead. Please check for validation rules that may be preventing you from saving the record — e.g., missing Total Power Units");
}