function resetByType(o){
	var elems=o.elements;
	for(var i=0;i<elems.length;i++)
	{
		if(elems[i].type=="text")
		{
			elems[i].value="";
		}
		else if(elems[i].type=="radio" ||	elems[i].type=="checkbox")
		{
			elems[i].checked="";
		}
		else if(elems[i].type=="select-one")
		{
			elems[i].value=null;
		}
	}
}