function ShowConfirmDeleteDialog(hidName,confirmMsg)
		{	
		
			if(window.confirm(confirmMsg)) // confirm delete
			{
				document.getElementById(hidName).value = "1";
			}
			else // cancel delete
			{
				document.getElementById(hidName).value = "0";				
				this.event.returnValue = false;
			}
		}
		
		function ChkToChangeButton(chkboxName,buttonName)
		{
			var frm = document.forms(0) ;
			var isChecked = false;
			var isFindDelBtn = false;
			var DelButton;
			
			
			// check checkbox's state
			for(i=0;i< frm.length;i++)
			{
				e=frm.elements[i];
				if ( e.type=='checkbox' && e.name.indexOf(chkboxName) != -1 )
				{
					if(e.checked)  //  if has any checked checkbox
					{
						isChecked = true;
						break;
					}
				}
			}
						
			// search button whose name is "Delbutton"
			for(i=0;i< frm.length;i++)
			{
				e=frm.elements[i];
				if ( e.type=='submit' && e.name.indexOf(buttonName) != -1 )
				{
					DelButton = e;
					isFindDelBtn = true;
					break;
				}
			}
			if(!isFindDelBtn) // not find any delete button
			{
				return;
			}
						
			if(isChecked) // if has any checked checkbox,enable delete button
			{
				DelButton.disabled = "";
			}
			else // if has no checked checkbox,disable delete button
			{
				DelButton.disabled="disabled";
			}
			
		}