function validate(){dm=document.form;var b=/(@.*@)|(\.\.)|(@\.)|(\.@)|(^\.)/;var a=/^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,5})(\]?)$/;if(dm.elements.naam.value==""){alert("Vul aub uw naam in");dm.naam.focus();return false}if(dm.elements.telefoon.value==""){alert("Vul aub uw telefoonnummer in");dm.telefoon.focus();return false}return true}function formatDecimal(c,a,e){var b=(e==null)?2:e;var d=1;d=Math.pow(10,b);c=Math.round(parseFloat(c)*d)/d;c=""+c;if(c.indexOf(".")==0){c="0"+c}if(a==true){if(c.indexOf(".")==-1){c=c+"."}while((c.indexOf(".")+1)>(c.length-b)){c=c+"0"}}return c}function anyCheck(e){var m=0;var c=0;var h=document.form.periode;var p=h.length;for(var t=0;t<p;t++){if(h[t].checked){m=h[t].value}}var o=document.form.insert;var w=o.length;for(var u=0;u<w;u++){if(o[u].checked){c=o[u].value}}var o=document.form.cover;var a=o.length;for(var u=0;u<a;u++){if(o[u].checked){cover=o[u].value}}var r=new Array();var x=new Array();r[1]=new Array("0","359","501");r[2]=new Array("0","388","566");r[3]=new Array("0","523","752");r[4]=new Array("0","681","1008");r[5]=new Array("0","921","1362");r[6]=new Array("0","1052","1471");x[1]=new Array("5.58","10.08","19.04");x[2]=new Array("4.86","8.76","16.48");x[3]=new Array("4.22","7.88","14.64");x[4]=new Array("3.52","6.64","12.80");x[5]=new Array("3.32","6.24","11.92");x[6]=new Array("2.98","5.68","10.72");var b=new Array("","250","500","1000","2500","5000","10000");var j=document.form("oplage").value;if(j!=0){if(m==0){var n=2}if(m==1){var n=4}if(m==2){var n=8}var y=(r[j][c]*n*1)+((x[j][m]*b[j])*1);if(cover=="y"){y=y+(958*n)}if(j==1){var k=250}if(j==2){var k=500}if(j==3){var k=1000}if(j==4){var k=2500}if(j==5){var k=5000}if(j==6){var k=10000}if(m==0){var f=2}if(m==1){var f=4}if(m==2){var f=8}var s=y/f;var q=formatDecimal(s,true,2);var g=s/k;var v=formatDecimal(g,true,2);var l=formatDecimal(y,true,2);document.form.totaalperexemplaar.value=v;document.form.totaalperuitgave.value=q;document.form.totaal.value=l}else{alert("Kies eerst een oplage")}};