function checkForm()
{
    var fname,lname,email,phone,abox,bbox,cbox,dbox,ebox,fbox,gbox,hbox,ibox,jbox,kbox,lbox,mbox,nbox,obox,pbox;
      
    fname    = document.confirm.txt_fname;
    lname    = document.confirm.txt_lname;
    email    = document.confirm.txt_email;
   	abox	= document.confirm.abox;
   	bbox	= document.confirm.bbox;
   	cbox	= document.confirm.cbox;
   	dbox	= document.confirm.dbox;
   	ebox	= document.confirm.ebox;
   	fbox	= document.confirm.fbox;
   	gbox	= document.confirm.gbox;
   	hbox	= document.confirm.hbox;
	ibox	= document.confirm.ibox;
	jbox	= document.confirm.jbox;
	kbox	= document.confirm.kbox;
	lbox	= document.confirm.lbox;
	mbox	= document.confirm.mbox;
	nbox	= document.confirm.nbox;
	obox	= document.confirm.obox;
	pbox	= document.confirm.pbox;

   	
   	cname 	= document.confirm.txt_cname;
   	ccontact = document.confirm.txt_ccontact;
   	cemail	= document.confirm.txt_cemail;
   	gfname	= document.confirm.txt_gfname;
   	glname	= document.confirm.txt_glname;
   	   	
    
   	if ((!abox.checked) && (!bbox.checked) && (!cbox.checked) && (!dbox.checked) && (!ebox.checked) && (!fbox.checked) && (!gbox.checked) && (!hbox.checked) && (!ibox.checked) && (!jbox.checked) && (!kbox.checked)  && (!lbox.checked) && (!mbox.checked) && (!nbox.checked)&& (!obox.checked) && (!pbox.checked)){
   		alert('Please select a service type')
   		return false;
   	}
 
    else if (!document.confirm.account[0].checked && !document.confirm.account[1].checked){
    	alert('Please select an account type: Guest or Travel Agent');
    	return false;
    }
    else if (document.confirm.account[0].checked){
    	if(trim(fname.value) == '')
	    {
	        alert('Please enter your first name');
	        fname.focus();
	        return false;
	    }
	    else if(trim(lname.value) == '')
	    {
	        alert('Please enter your last name');
	        lname.focus();
	        return false;
	    }
	      else if(trim(email.value) == '')
	    {
	        alert('Please enter your email address');
	        email.focus();
	        return false;
	    }
	    else if(!isEmail(trim(email.value)))
	    {
	        alert('Email address is not valid');
	        email.focus();
	        return false;
	    }
    }
    else if (document.confirm.account[1].checked){
    	if(trim(cname.value) == '')
	    {
	        alert('Please enter your company name');
	        cname.focus();
	        return false;
	    }
	    else if(trim(ccontact.value) == '')
	    {
	        alert('Please enter your company contact details');
	        ccontact.focus();
	        return false;
	    }
	    else if(trim(cemail.value) == '')
	    {
	        alert('Please enter your company email address');
	        cemail.focus();
	        return false;
	    }
	    else if(!isEmail(trim(cemail.value)))
	    {
	        alert('Email address is not valid');
	        cemail.focus();
	        return false;
	    }
	    else if(trim(gfname.value) == '')
	    {
	        alert('Please enter your guest first name');
	        gfname.focus();
	        return false;
	    }
	    else if(trim(glname.value) == '')
	    {
	        alert('Please enter your guest last name');
	        glname.focus();
	        return false;
	    }
	    
    }
   	    
        
    else
    {
        var answer=confirm('Are you sure you want to proceed?');
        if (!answer){
        	return false;}
        	else
        	{
    	fname.value = trim(fname.value);
        lname.value = trim(lname.value);
        email.value = trim(email.value);
        cname.value = trim(cname.value);
        ccontact.value = trim(ccontact.value);
        cemail.value = trim(cemail.value);
        gfname.value = trim(gfname.value);
        glname.value = trim(glname.value);
        return true;}
    }
    
    
}

/*
Strip whitespace from the beginning and end of a string
Input : a string
*/
function trim(str)
{
    return str.replace(/^\s+|\s+$/g,'');
}

/*
Check if a string is in valid email format. 
Returns true if valid, false otherwise.
*/
function isEmail(str)
{
    var regex = /^[-_.a-z0-9]+@(([-_a-z0-9]+\.)+(ad|ae|aero|af|ag|ai|al|am|an|ao|aq|ar|arpa|as|at|au|aw|az|ba|bb|bd|be|bf|bg|bh|bi|biz|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|com|coop|cr|cs|cu|cv|cx|cy|cz|de|dj|dk|dm|do|dz|ec|edu|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gh|gi|gl|gm|gn|gov|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|in|info|int|io|iq|ir|is|it|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|mg|mh|mil|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|museum|mv|mw|mx|my|mz|na|name|nc|ne|net|nf|ng|ni|nl|no|np|nr|nt|nu|nz|om|org|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|pro|ps|pt|pw|py|qa|re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za|zm|zw)|(([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5])\.){3}([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5]))$/i;
    return regex.test(str);
}

function confirmReset(){
	var answer=confirm('Are you sure that you want to reset the form?');
	if(!answer){
		return false;}
		else{
			return true;}
}


function IsNumeric(sText)


{
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;

 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
 
 }
 
//****************************function of onMouse over****************************************************************

// Call the init-routine with <BODY onload="initalt()">
// Call the alt-routine via mouseover 
// <a href="" onmouseover="doalt('your message')" onmouseout="realt()">Link</A>
// You can use any html you want as your message, so this could also be used for some 
// Menus...
//
 
 function initalt()
{
altback="F4E498" 
altborder="813b00"
altfont="Verdana"  // Alt-Message Font
altfontcolor="074311"// Alt-Message Font color
altfontsize="1" // Alt-Message Font Size
altoffx=5 // Alt-Message horizontal offset from mouse-position
altoffy=15 // Alt-Message vertical offset from mouse-position
altwidth=200 // Alt-Message width, will be expanded by your message
altheight=0 // Alt-Message height, will be expanded by your message
// end of Variables
             
                document.onmousedown = sniff
                document.onmousemove = sniff
                document.onmouseup = sniff
  if (document.layers) 
  {  //NS
  document.captureEvents(Event.MOUSEDOWN | Event.MOUSEMOVE | Event.MOUSEUP)
  document.layers['altmessage'] = new Layer(altwidth)
  document.layers['altmessage'].left = 0
  document.layers['altmessage'].top = 0
  document.layers['altmessage'].height = altheight
  document.layers['altmessage'].bgColor = altback
  document.layers['altmessage'].visibility = "hidden"
  document.layers['altmessage'].borderStyle = "solid"
  document.layers['altmessage'].borderColor = altborder
  document.layers['altmessage'].borderWidth = 1
  }
  else if (document.all)
  { //IE
  document.body.insertAdjacentHTML("BeforeEnd",'<DIV ID="altmessage" STYLE="z-index:200;position:absolute;width:'+altwidth+';height:'+altheight+';left:0;top:0;visibility:hidden;background:'+altback+';border-style:solid;border-width:1;border-color:'+altborder+'"></DIV>')
  }
  }

        function sniff(e) 
        {
        // GETS Mouseposition
        if (document.layers)
        {
        var mousex=e.pageX; var mousey=e.pageY;document.layers['altmessage'].left = mousex+altoffx;document.layers['altmessage'].top = mousey+altoffy
        }
        else if (document.all)
        {
        var mousex=event.x; var mousey=event.y+document.body.scrollTop;altmessage.style.top=mousey+altoffy;altmessage.style.left=mousex+altoffx
        }
        }

       function doalt(message)
       {
       //The main routine
       content='<font face="'+altfont+'" size="'+altfontsize+'" color="'+altfontcolor+'">'+message+'</FONT>'				
       if (document.layers) 
       {
       with (document.layers['altmessage'].document)
       {
 		open()
       write(content)
       close()
       }
       document.layers['altmessage'].visibility = "show"
       }
       else if (document.all) 
       { 
	    document.all['altmessage'].innerHTML = content
	    document.all['altmessage'].style.visibility = "visible"
       }
       }
       function realt()
       {
       if (document.layers)document.layers['altmessage'].visibility = "hidden";
       else if (document.all) document.all['altmessage'].style.visibility = "hidden";
       }