function check(id)
 {
 	var obj=document.getElementById('params_'+id);
 	if(document.getElementById('task_'+id).checked)
 	 {
 		obj.style.display = '';
 	 }
 	else
 	 {
 	 	obj.style.display = 'none';
 	 }
 	return;
 }
function openModal(w,h,href)
 {
 	var args=new Array();
 	 //status:no; help:no
 	var str='dialogHeight:'+h+'px; dialogWidth:'+w+'px; help:no; status:no';
 	var dialog=showModalDialog(href, args,str);
 	return false;
 }
function openWindow(w,h,href)
 {
 	window.open(href,"Window","WIDTH="+w+", HEIGHT="+h+", status=no ,scrollbars=yes, location=no, resizable=yes");
 	return false;
 }
function show_hide(id)
 {
 	var obj=document.getElementById(id);
 	if(obj.style.display == '')
 	 {
 	 	obj.style.display='none';
 	 }
 	else
 	 {
 		obj.style.display='';
 	 }
 }