// JavaScript Document

var form='form';

function SetChecked(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;
		}
	}
}

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