function showhide(what){
if (what.style.display=='none'){
what.style.display='';
}
else{
what.style.display='none'
}
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}


function showCalc(calc){
		var pWidth = ( ((parseInt(screen.width) / 2)) - 275 )
		var pHeight = (((parseInt(screen.height) / 2)) -240)
        window.open(calc,'hello',"width=550,height=480,left=" + pWidth + ",top=" + pHeight + ",resizable=1,scrollbars=1");
}