function getFormValues(form_name)
{var params='';var form_elt;var key;var val;for(var i=0;i<document.forms[form_name].elements.length;i++){form_elt=document.forms[form_name].elements[i];key=form_elt.name;if(key){val=getFormElementValue(form_elt);if(val){params+=key+'='+encodeURI(val)+'&';}}}
return params;}
function getFormElementValue(form_elt)
{var elt_val;switch(form_elt.type){case"hidden":case"text":case"textarea":case"password":elt_val=form_elt.value;break;case"checkbox":case"radio":if(form_elt.checked==true){elt_val=form_elt.value;}
break;case"select-one":elt_val=form_elt.options[form_elt.selectedIndex].value;break;}
return elt_val;}