<!--
 function clientChange(index,ovalue){
    alert("You may not change your information here.");
    document.client.elements[index].value=ovalue;
 }

 function preSubmit(){
 	
    var str='',i=0;
    var form=document.forms[1];
    for(i=0;i<form.elements.length;i++){
       str+=i+':'+form.elements[i].name+':'+form.elements[i].value+'\n';
    }
 alert(str);
	return false;
	
 }
 
function caculate(i){
   var uprice=0,num=0,sum=0;
   var set=6;
   var form=document.order;
   uprice=parseFloat(form.elements[i*set+3].value);
   num=parseFloat(form.elements[i*set+4].value);
   sum=uprice*num;
   if(isNaN(sum))
      sum=0;
   form.elements[i*set+5].value=sum;
   total(); 
}
 
function total(){
   var set=6;
   var form=document.order;
   var len,total=0,sum=0;
   len= form.elements.length-6;
   len= parseInt(form.elements["item"].value);
   for(i=0;i<len;i++){
      sum=parseFloat(form.elements[i*set+5].value);
      //alert(sum);
      if(!isNaN(sum)){
        total+=sum;
      }        
   }
   form.elements["total"].value=total;
}

function checkData(){
   	if(document.forms[0].company.value.length==0){

      		alert("Company field is empty.");

	    	return false;
	
	}

   	if(document.forms[0].contact.value.length==0){

      		alert("Contact field is empty.");

    		return false;

   	}

   	if(document.forms[0].address.value.length==0){

      		alert("Address field is empty.");

    		return false;

   	}
   	if(document.forms[0].phone.value.length==0){

      		alert("Phone field is empty.");

    		return false;

   	}
   	if(document.forms[0].fax.value.length==0){

      		alert("Fax field is empty.");

    		return false;

   	}
   	if(document.forms[0].email.value.indexOf("@")<=0){

      		alert("Email is not correct.");

    		return false;

   	}
	return true;

}
//-->