IT-Stuffs

To Identify of there is a any Item is available in a List box Using Javascript

   function CheckSelected() {
         var sMsg = "";
         if (document.getElementById('<%=lstMinorErrors.ClientID %>') != null) {
             //alert(document.getElementById('<%=lstMinorErrors.ClientID %>').options.length);
             if (document.getElementById('<%=lstMinorErrors.ClientID %>').options.length < 0) {
                 sMsg = "No Items Found to Insert!"
             }
         }
         if (sMsg != "") {
             alert(sMsg);
             return false;
         }
         else
             return true;
     }

//To check whether the user checked any of the item in a Gridview for Delete Options
function ClientCheck(sMsg) {
         var valid = false;
         var gv = document.getElementById('<%=gvMinorErrorMaster.ClientID%>');//gvMinorErrorMaster- denotes gridview Name

         for (var i = 0; i < gv.all.length; i++) {
             var node = gv.all[i];
             if (node != null && node.type == "checkbox" && node.checked) {
                 valid = true;
                 break;
             }
         }
         if (!valid) {
             alert("Please select a checkbox to continue.");
         }
         else {
             var sConform = confirm(sMsg);
             if (sConform == true)
                 valid = true;
             else
                 valid = false;
         }
         return valid;
     }  

//In code behind of the page_load Event:
 btnDelete.Attributes.Add("OnClick", "return ClientCheck('Are you sure to Delete the Selected Rows.');");

function CheckSearchProCustSel() {
         var ddlReport;
         var sObj;
         var sErrMsg = "";
         ddlReport = document.getElementById("<%=ddlSProCust.ClientID%>");//ddlSProCust- denotes Dropdown list Id
         sObj = ddlReport.options[ddlReport.selectedIndex].value;//Get the Selected index value
  //check if the selectedindex 
         if (sObj == 0) {
             sErrMsg = "Select Customer-Project to Serach!  \n";
         }
         if (sErrMsg != "") {
             alert(sErrMsg);
             return false;
         }
         else
             return true;
     }

  // Removes leading whitespaces
     function LTrim(value) {
         var re = /\s*((\S+\s*)*)/;
         return value.replace(re, "$1");
     }
     // Removes ending whitespaces
     function RTrim(value) {
         var re = /((\s*\S+)*)\s*/;
         return value.replace(re, "$1");
     }
     // Removes leading and ending whitespaces
     function trim(value) {
         return LTrim(RTrim(value));
     }