dom = (document.getElementById)? 1 : 0;
    ns4 = (document.layers)?1:0; 
    ns6 = (dom&&!document.all)?1:0;

function calculate()	
{
a=document.forms['textFrm'];
if(a.elements['L1_numC'].value>0&&a.elements['h1_numC'].value>0&&a.elements['p1_numC'].value>0)a.elements['M31'].value=a.elements['h1_numC'].value*a.elements['L1_numC'].value*a.elements['p1_numC'].value;
if(a.elements['L2_numC'].value>0&&a.elements['h2_numC'].value>0&&a.elements['p2_numC'].value>0)a.elements['M32'].value=a.elements['h2_numC'].value*a.elements['L2_numC'].value*a.elements['p2_numC'].value;
if(a.elements['L3_numC'].value>0&&a.elements['h3_numC'].value>0&&a.elements['p3_numC'].value>0)a.elements['M33'].value=a.elements['h3_numC'].value*a.elements['L3_numC'].value*a.elements['p3_numC'].value;
}
var isChecked = 0;
function enableFields()
{	isChecked = 1;
document.styleSheets[0].imports[0].rules[4].style.background="#ffffff";
document.styleSheets[0].imports[0].rules[5].style.background="#ffffff";
}

function disableFields()
{	isChecked = 0;
document.styleSheets[0].imports[0].rules[4].style.background="#CBD7DF";
document.styleSheets[0].imports[0].rules[5].style.background="#CBD7DF";
}

function winOpen(winName)
{	wins = window.open(winName+'.htm',winName,'left=150,top=102,width=635,height=330,toolbar=no,menubar=no,resizable=no,statusbar=no,screenX=150,screenY=192, scrollbars=1'); 
	wins.focus();
}