String.prototype.trim = function () {
    return this.replace(/^\s*/, "").replace(/\s*$/, "");
}

function cleanStr(item)
	{
		var txt, re, r;
		txt = item.value;
		re = /[^A-Za-z0-9_\s\.\-\&\,]/g;
		r = txt.replace(re,'');
		r = r.trim();
		item.value = r.toUpperCase();	
	}
	
function chk_Select(src, args)
	{
		var s = document.getElementById(src.controltovalidate);
		args.IsValid = (s.selectedIndex > 0);
	}
	
function justNumbers(item)
    {
        var txt, re, r;
		txt = item.value;
		re = /[^0-9]/g;
		r = txt.replace(re,'');
		item.value = r.trim();
	}
	
function justAlphaNum(item)
    {
        var txt, re, r;
		txt = item.value;
		re = /[^A-Za-z0-9]/g;
		r = txt.replace(re,'');
		item.value = r.trim();
	}
	
function justAlpha(item)
    {
        var txt, re, r;
		txt = item.value;
		re = /[^A-Za-z\s]/g;
		r = txt.replace(re,'');
		r = r.trim();
		item.value = r.toUpperCase();
	}
	
function justDates(item)
    {
        var txt, re, r;
		txt = item.value;
		re = /[^0-9\-\/]/g;
		r = txt.replace(re,'');
		r = r.trim();
		item.value = r.toUpperCase();
	}	

function trimEmail(item)
    {
        //var r = new String(item.value);
        //item.value = r.trim();
        var txt, re, r;
		txt = item.value;
		re = /[^A-Za-z0-9_\@\.\-]/g;
		r = txt.replace(re,'');
		item.value = r.trim();
    }