function si(object){if(document.getElementById){document.getElementById(object).style.display='inline';}}
function h(object){if(document.getElementById){document.getElementById(object).style.display='none';}}
function sb(object){if(document.getElementById){document.getElementById(object).style.display='block';}}
function hl(linav){if(document.getElementById){mainnav=document.getElementById("nav").childNodes;i=0;while(mainnav[i]){mainnav[i].id="";i++;}
linav.id="high";}}
function jump(targ,selObj,restore){if(selObj.options[selObj.selectedIndex].value)
eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");if(restore)selObj.selectedIndex=0;}
function report_expand(id,newC){var i=0;var obj;while(obj=document.getElementById(id+"_"+i)){if(newC){obj.className=newC;}else if(obj.className=='show'){obj.className='hide';}else if(obj.className=='hide'){obj.className='show';}else if(obj.className=='tdwn'){obj.className='tup';}else if(obj.className=='tup'){obj.className='tdwn';}else if(obj.className=='sel'){obj.className='nosel';}else if(obj.className=='nosel'){obj.className='sel';}
i++;}}
function report_setpref(id,cookiename){var obj;var prefvalue;if(obj=document.getElementById(id+"_1")){if(obj.className=='hide'){prefvalue=1;}else{prefvalue=0;}
document.cookie=cookiename+"="+prefvalue;}
return void(0);}
function tab(o){if(document.getElementById){t=document.getElementById("secondwave").childNodes;var i=0;while(t[i]){t[i].className="";i++;}
o.className="selected";}}
function people_select(object){var name=object.name+'_text';if(object.options[object.selectedIndex].value==3){document.getElementById(name).style.display='inline';}else{document.getElementById(name).style.display ='none';}}
function display_without_check(){var found=0;if(document.advsearch.all_words.value!=''){found=1;}
if(document.advsearch.exact_phrase.value!=''){found=1;}
if(document.advsearch.some_word.value!=''){found=1;}
if(found==1){document.advsearch.without_words.disabled=false;}else{document.advsearch.without_words.disabled=true;}}
function checkoff_sub_troves(obj,index){var name;var state;var sub_list;if(index==null){name='stc_'+obj.value;state=obj.checked;}else{name='stc_'+obj[index].value;state=obj[index].checked;}
if(document.getElementById){sub_list=document.getElementById(name).value;}else{sub_list=document.advsearch[name].value;}
var subs=sub_list.split(",");var cboxes=document.advsearch["trove_cat[]"];for(x in subs){for(var i=0;i<cboxes.length;++i){if(cboxes[i].value==subs[x]){cboxes[i].checked=state;var sub_name='stc_'+cboxes[i].value;if(document.getElementById){if(document.getElementById(sub_name)){checkoff_sub_troves(cboxes,i);}}else{if(document.advsearch[sub_name]){checkoff_sub_troves(cboxes,i);}}}}}}
function form_check(){var valid=true;var message="";for(var i=0;i<document.advsearch.elements.length;i++){var field=document.advsearch.elements[i];if(field.name.match(/date/)){if(field.value){var field_name=field.name.replace(new RegExp(/_date_/)," ");if(field.value.match(/(19|20)(\d{2})[- \/.](0[1-9]|1[012])[- \/.](0[1-9]|[12][0-9]|3[01])/)){var year=RegExp.$1+RegExp.$2;year=parseInt(year);var month=parseInt(RegExp.$3);var day=parseInt(RegExp.$4);if(day==31&&(month==4||month==6||month==9||month==11)){message+="The "+field_name+" date is invalid. <br />";}else if(day>=30&&month==2){message+="The "+field_name+" date is invalid. <br />";}else if(day==29&&month==2&&!(year%4==0&&(year%100!=0||year%400==0))){message+="The "+field_name+" date is invalid. <br />";}else{if(field.name.match(/date_start/)){var end;var end_name=field.name.replace(new RegExp(/date_start/),"");end_name+='date_end';if(document.getElementById(end_name)){end=document.getElementById(end_name).value;}else{end=document.advsearch[end_name].value;}
if(end&&end.match(/(19|20)(\d{2})[- \/.](0[1-9]|1[012])[- \/.](0[1-9]|[12][0-9]|3[01])/)){var end_year=RegExp.$1+RegExp.$2;end_year=parseInt(end_year);var end_month=parseInt(RegExp.$3);var end_day=parseInt(RegExp.$4);var end_date=(end_year*365)+(end_month*32)+end_day;var start_date=(year*365)+(month*32)+day;if(end_date<start_date){message+="The start date falls after the end date. <br />";}}}}}else{message+="The format for the "+field_name+" date field is yyyy-mm-dd. <br />";}}}
if(field.name.match(/percentile/)){if(field.value){if(field.value.match(/^\d{1,3}\.?\d*$/)){if(field.value<0||field.value>100){message+="Percentages must be positive numeric values between 0 and 100. <br />";}else if(field.name.match(/start/)){var end;if(document.getElementById("percentile_end")){end=document.getElementById("percentile_end").value;}else{end=document.advsearch["percentile_end"].value;}
if(end){end=parseInt(end);var start=parseInt(field.value);if(end<start){message+="The starting percentage must be smaller than the end value. <br />";}}}}else{message+="Percentages must be positive numeric values only. <br />";}}}}
if(message){var error=document.getElementById("error");error.innerHTML=message;valid=false;}
return valid;}
function clear_form(){for(var i=0;i<document.advsearch.elements.length;i++){var element=document.advsearch.elements[i];if(element.type=='submit'){continue;}
if(element.type=='reset'){continue;}
if(element.type=='button'){continue;}
if(element.type=='hidden'){continue;}
if(element.type=='text'){element.value='';}
if(element.type=='textarea'){element.value='';}
if(element.type=='checkbox'){if(element.name.match(/search_/)){if(element.name.match(/search_comments/)){element.checked=false;}else{element.checked=true;}}else{element.checked=false;}}
if(element.type=='radio'){element.checked=false;}
if(element.type=='select-multiple'){element.selectedIndex=-1;}
if(element.type=='select-one'){element.selectedIndex=-1;}}
document.advsearch.without_words.disabled=true;return false;}