/*
	Description:
		JS functions common to most pages on Eltek web site

	Written by:
		Tim Booker
		tim@saltstonemedia.co.uk
*/


// break out of a frameset

if( self != top ) {
    var ref = self.location;
    top.location.replace( ref );
}

function menuDesc( what, vis, desc ) {

// updates div with description text of menu items

    var div = document.getElementById( 'div' + what + 'Desc' );

    if( div ) {
        if( vis ) {
            
            // write the new html into div            
            var htm = '<table width="750" height="26" cellspacing="0" cellpadding="0" border="0">\n<tr>\n' +
                '<td width="10">&nbsp;</td>\n' +
                '<td width="740"><p>' + desc + '</p></td>\n' +
                '</tr>\n</table>\n';                
            
            if( document.layers ) {
                with( div.document ) {
                    open();
                    write( htm );
                    close();
                }
            } else {
                div.innerHTML = htm;
            }
            
            // show div
            div.style.visibility = 'visible';
            
        } else {
            // hide div
            div.style.visibility = 'hidden';
        }
    }
}

function openPano( pageUrl ) {
    
    var w = 320;
    var h = 320;
    
    var l = ( screen.availWidth  - w ) / 2;
    var t = ( screen.availHeight - h ) / 2;
    
    panoWin = window.open( pageUrl, 'panoWin', 'width=' + w + ',height=' + h + ',status=0,scrollbars=0,left=' + l + ',top=' + t );
    panoWin.focus();
}

/* mm standard functions */

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 a valid e-mail address\n';
      } else if (test!='R') {
        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 (val<min || max<val) 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 == '');
}