// JavaScript Document
function MM_jumpMenu(selObj,restore){ //v3.0
  var url = selObj.options[selObj.selectedIndex].value;
  if (url) window.open(url,"_self");
  if (restore) selObj.selectedIndex=0;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
  } if (errors) alert('The following error(s) occurred:\n'+errors);
  document.MM_returnValue = (errors == '');
}

// ---------------------------------------------------------- Funcion para mostrar los DIV's dependiento del Select -------------------------------------
function choose()
{
	var selectedItem=document.formCats.cats.selectedIndex
	hideDiv()
	if(selectedItem>2)
	{
		switch(selectedItem)
		{
			case 3:	document.getElementById("mailMH").value = 'servicioalcliente.mx@mcgraw-hill.com'
			break
			case 4: case 5: case 6: case 7:	document.getElementById("mailMH").value = 'mx_escolar@mcgraw-hill.com' 
											document.getElementById("typeEscolar").value = selectedItem
			break
			case 8:	document.getElementById("mailMH").value = 'mx_universidades@mcgraw-hill.com'
			break
			case 9:	document.getElementById("mailMH").value = 'mx_elt@mcgraw-hill.com'
			break
			case 10: document.getElementById("mailMH").value = 'mxcsalud@mcgraw-hill.com'
			break
			case 11: document.getElementById("mailMH").value = 'ivan_trejo@mcgraw-hill.com'//''  cesar_robles@mcgraw-hill.com
			break
		}
		document.getElementById("opc3").style.display="block"
	}
	else
		document.getElementById("opc"+selectedItem).style.display="block"
}
function hideDiv()
{
	for(cont=0;cont<=3;cont++)
	{
		document.getElementById("opc"+cont).style.display="none"
	}
}