function changeClass(obj, sClassName)
{
	obj.className = sClassName;
}

var winFlag = 0;
function newWin(url, x, y) 
{
		//if (typeof(new_win) != "undefined") new_win.close();
		new_win = window.open(url,null,"width="+x+",height="+y+",scrollbars=no,resizable=no");
		winFlag = 1;
}

function trim(str) {
		str = str.replace(/^\s+/g,""); 
 		str = str.replace(/\s+$/g,""); 
		return str; 
}

function doChange(bChecked,sName) 
{
	bChecked ? document.all[sName].value = 1 : document.all[sName].value = 0;
}

function checkNumChars(e, sType)
{
	if(window.event) // IE
	{
		keynum = e.keyCode
	}
	else if(e.which) // Netscape/Firefox/Opera
	{
		keynum = e.which
	}
	
	if(sType == "dot")
	{
		if ((keynum < 46 || keynum > 57 || keynum == 47) && keynum != 8) return false;
		else return true;
	}
	else if(sType == "num")
	{
		if (keynum < 46 || keynum > 57) return false;
		else return true;
	}
	
}