function SetChecked(form,val,chkName) 
{
	dml=document.forms[form];
	len = dml.elements.length;
	var i=0;
	for( i=0 ; i<len ; i++) 
	{
		if (dml.elements[i].name==chkName) 
		{
			dml.elements[i].checked=val;
		}
	}
	return false;
}