function Trim(TRIM_VALUE)
	{
		if(TRIM_VALUE.length < 1)
		{
			return"";
		}
		TRIM_VALUE = RTrim(TRIM_VALUE);
		TRIM_VALUE = LTrim(TRIM_VALUE);
		if(TRIM_VALUE=="")
		{
			return "";
		}
		else
		{
			return TRIM_VALUE;
		}
	} //End Function
	
	function RTrim(VALUE){
		var w_space = String.fromCharCode(32);
		var v_length = VALUE.length;
		var strTemp = "";
		if(v_length < 0)
		{
			return"";
		}
		var iTemp = v_length -1;
		while(iTemp > -1)
		{
			if(VALUE.charAt(iTemp) == w_space)
			{
			
			}
			else
			{
				strTemp = VALUE.substring(0,iTemp +1);
				break;
			}
		iTemp = iTemp-1;
		} //End While
		return strTemp;
	} //End Function
	
	function LTrim(VALUE)
	{
		var w_space = String.fromCharCode(32);
			if(v_length < 1)
			{
				return"";
			}
		var v_length = VALUE.length;
		var strTemp = "";
	
		var iTemp = 0;
	
		while(iTemp < v_length){
			if(VALUE.charAt(iTemp) == w_space)
			{
			}
			else
			{
				strTemp = VALUE.substring(iTemp,v_length);
				break;
			}
			iTemp = iTemp + 1;
		} //End While
	return strTemp;
	} //End Function
	
  	function checkall() 
  	
		{
			if(document.getElementById("tutti"))
			{
			temp = document.getElementsByTagName("input").length;
				for (i=0; i < temp; i++)
					{   
						document.getElementsByTagName("input")[i].checked=1;
				    }
			tutti = document.getElementById("tutti");
			document.getElementsByTagName("th")[6].removeChild(tutti);
			document.getElementsByTagName("th")[6].innerHTML = "<input id=\"nessuno\" type=\"button\" onclick=\"checkall()\" value=\"nessuno\" />";
			}
			else
			{
			temp = document.getElementsByTagName("input").length;
				for (i=0; i < temp; i++)
					{   
						document.getElementsByTagName("input")[i].checked="";
				    }
			nessuno = document.getElementById("nessuno");
			document.getElementsByTagName("th")[6].removeChild(nessuno);
			document.getElementsByTagName("th")[6].innerHTML = "<input id=\"tutti\" type=\"button\" onclick=\"checkall()\" value=\"tutti\" />";
			}
		}