searchUserInfo(queryParam: EC_ContactParam, callback: Function): void

var searchContact = function (pageIndex) {
	var queryParam = document.getElementById("contact_ipt").value;
	client.searchUserInfo({condition: queryParam, pageIndex:pageIndex, searchType:0}, function (ret) {
		if (ret.result) {                
			var data = ret.info
			for (var m in data) {
		            //handle data                           
			}                
		}
	})
}