function convertMM( )	{try{if( document.getElementById("inch").value != '' ){	document.getElementById("mm").value = convertDec( (parseInt( document.getElementById("inch").value, 10 )*10) / 0.393700787 );}else{document.getElementById("inch").value = convertDec( (parseInt( document.getElementById("mm").value, 10 )/10) * 0.393700787 );}}catch( e ){} }	function convertDec( val ){return  val.toFixed(0);}function calcDim( ){var sqMeter = 0;var self = 0;self=(parseInt( document.getElementById("w1").value ) * parseInt( document.getElementById("h1").value) ) / 1000000;if (!isNaN(self)) { sqMeter+=self; }self=(parseInt( document.getElementById("w2").value ) * parseInt( document.getElementById("h2").value) ) / 1000000;if (!isNaN(self)) { sqMeter+=self; }self=(parseInt( document.getElementById("w3").value ) * parseInt( document.getElementById("h3").value) ) / 1000000;if (!isNaN(self)) { sqMeter+=self; }self=(parseInt( document.getElementById("w4").value ) * parseInt( document.getElementById("h4").value) ) / 1000000;if (!isNaN(self)) { sqMeter+=self; }self=(parseInt( document.getElementById("w5").value ) * parseInt( document.getElementById("h5").value) ) / 1000000;if (!isNaN(self)) { sqMeter+=self; }var cost_b = sqMeter * 230;document.getElementById("total_Bass").value = isNaN( cost_b ) ? 0.00 : round( cost_b, 2 );}function round( number, places ) {places = ( !places ? 2 : places );return Math.floor( number * Math.pow( 10, places ) ) / Math.pow( 10, places );}