function visi(nr)
{
	if (document.layers)
	{
		vista = (document.layers[nr].visibility == 'hide') ? 'show' : 'hide'
		document.layers[nr].visibility = vista;
	}
	else if (document.all)
	{
		vista = (document.all[nr].style.visibility == 'hidden') ? 'visible'	: 'hidden';
		document.all[nr].style.visibility = vista;
	}
	else if (document.getElementById)
	{
		vista = (document.getElementById(nr).style.visibility == 'hidden') ? 'visible' : 'hidden';
		document.getElementById(nr).style.visibility = vista;

	}
}


function sendto(form) {
				var selection = form.Express.options[form.Express.selectedIndex].value;
				if (selection != "") location = selection;
			}


function replace_some_characters()
{      
		document.forms['querybox'].Search_Arg.value= document.forms[0].Search_Arg.value.replace(/\+/g,"");
		// document.forms['querybox'].Search_Arg.value= document.forms[0].Search_Arg.value.replace(/\?/g,"");
		document.forms['querybox'].Search_Arg.value= document.forms[0].Search_Arg.value.replace(/\*/g,"");
}   

function replace_characters()
{      
		document.forms['querybox'].Search_Arg.value= document.forms[0].Search_Arg.value.replace(/\+/g,"");
		document.forms['querybox'].Search_Arg.value= document.forms[0].Search_Arg.value.replace(/\"/g,"");
		// document.forms['querybox'].Search_Arg.value= document.forms[0].Search_Arg.value.replace(/\?/g,"");
		document.forms['querybox'].Search_Arg.value= document.forms[0].Search_Arg.value.replace(/\*/g,"");
}      

// here, the selectedIndex begins with 0, don't forget
// 0 = keywords, 1 = title, 2 = Journal Title, 3 = Author
function submit_form() 
  {     
	current_selection = document.forms['querybox'].Search_Code.selectedIndex;
	current_search = document.forms['querybox'].Search_Arg.value; 
var FindNot = /\x2B/g;

  if(current_selection ==0 && current_search.search(/ not /gi) ==-1 && current_search.search(/ or /gi) ==-1) // keyword
	{      
		
// replace the desired characters with nothin'
/*	
		replace_characters();
		
// remove any ANDs that might be present		
document.forms['querybox'].Search_Arg.value= document.forms['querybox'].Search_Arg.value.replace(/and /gi,"");

	
		document.forms['querybox'].Search_Arg.value= document.forms['querybox'].Search_Arg.value.replace(/\s+/g," AND ");		
		

*/		

	}      	

	else if(current_selection ==1) // title
	{      
		replace_characters();
document.forms['querybox'].Search_Arg.value= document.forms['querybox'].Search_Arg.value.replace(/^the /i,"");
document.forms['querybox'].Search_Arg.value= document.forms['querybox'].Search_Arg.value.replace(/^a /i,"");
document.forms['querybox'].Search_Arg.value= document.forms['querybox'].Search_Arg.value.replace(/^an /i,"");
document.forms['querybox'].Search_Arg.value= document.forms['querybox'].Search_Arg.value.replace(/^le /i,"");
document.forms['querybox'].Search_Arg.value= document.forms['querybox'].Search_Arg.value.replace(/^la /i,"");
document.forms['querybox'].Search_Arg.value= document.forms['querybox'].Search_Arg.value.replace(/^les /i,"");
document.forms['querybox'].Search_Arg.value= document.forms['querybox'].Search_Arg.value.replace(/^el /i,"");
	}     
	
	else if(current_selection ==2) // Journal Title
	{       
		replace_characters();

document.forms['querybox'].Search_Arg.value= document.forms['querybox'].Search_Arg.value.replace(/^the /i,"");
document.forms['querybox'].Search_Arg.value= document.forms['querybox'].Search_Arg.value.replace(/^a /i,"");
document.forms['querybox'].Search_Arg.value= document.forms['querybox'].Search_Arg.value.replace(/^an /i,"");
document.forms['querybox'].Search_Arg.value= document.forms['querybox'].Search_Arg.value.replace(/^le /i,"");
document.forms['querybox'].Search_Arg.value= document.forms['querybox'].Search_Arg.value.replace(/^la /i,"");
document.forms['querybox'].Search_Arg.value= document.forms['querybox'].Search_Arg.value.replace(/^les /i,"");
document.forms['querybox'].Search_Arg.value= document.forms['querybox'].Search_Arg.value.replace(/^el /i,"");
	}       
  }     		
	//-->