// clear form fields
function clearDefault(el) {
    var defaultValue = "";
    if (defaultValue==el.value)
	{
		el.value = "";
	}
}

function checkEnter(e,caller) //e is event object passed from function invocation
{

	var characterCode //literal character code will be stored in this variable

	if(e && e.which ||e.which == 0)
	{ //if which property of event object is supported (NN4)
	
		e = e
		characterCode = e.which //character code is contained in NN4's which property
	}
	else
	{
		e = event
		characterCode = e.keyCode //character code is contained in IE's keyCode property
	}

	if(characterCode == 13)//if generated character code is equal to ascii 13 (if enter key)
	{ 
	    if(document.all){
		    e.returnValue=false;
            e.cancel = true;
        }
        else{
         e.preventDefault();
        }
        var obj = document.getElementById(caller);
        if(obj){        
            
            if(obj.click){
		        obj.click();
		    }
		}
		return false
	}
	else
	{
		return true
	}
		
}

// the institutions have their domains... is not more necessary for others builds of the url
function quickSearch(query){

    var query = encodeURIComponent(query);

    if(query != ''){
		location.href = '/Search.aspx?q=' + query;
    }   
}

function validateSpecialCharsProducts(strToSearch)
{    
    var illegalChars = '0123456789';
    for (var i = 0; i < strToSearch.length; i++)
    {
        if (illegalChars.indexOf(strToSearch.charAt(i)) == -1)
        {
            return false;
        }
    }
    return true;
}

function doSearch(field, prodOnly){

	var q = '?q=';
	var qBox = document.getElementById('searchText1');
	var newlocation = '';

	curQuery = ClearString(qBox.value); //qBox.value.replace(/[^a-zA-Z 0-9]+/g,'');

	if (curQuery.length == 9 && validateSpecialCharsProducts(curQuery)) {
	    newlocation = curQuery;
	}
	else {
	    newlocation = qBox.value;
	}		
	
    if(qBox != null){
        q += encodeURI(newlocation);
    }
    	
	var checkedCategories = "";
	for (i = 0; i < field.length; i++)
		if (field[i].checked == true){
			//alert(field[i].value);
			checkedCategories += "&cat=" + field[i].value;
		}
	
	if (checkedCategories != ""){
		q += checkedCategories;
	}
	
	if (prodOnly.checked == true){
		q += "&productOnly=true";
	}
	
    //if(display == "none"){
		location.href = '/Search.aspx' + q;
    //}
	
	return;	
}

function checkAll(field){
//	alert("checkAll");
for (i = 0; i < field.length; i++)
	if (field[i].checked == true){
//		alert(field[i].value);
	}
}

function getNumForPage(newnum){
	var url = location.href;
	var num_value = "";
	var start_value = "";
	
	var querystring = url.split("?")[1];
	
	qss = querystring.split("&");
	for (i=0;i<qss.length;i++) {
		qs = qss[i].split("=");
		if (qs[0] == "num") {
			num_value = qs[1];
		}
		if (qs[0] == "start") {
			start_value = qs[1];
		}
	}
	
	
	
	if (num_value==""){
		url = url + "&num=" + newnum;
	}
	else{
	    url = url.replace("num=" + num_value, "num=" + newnum);
	}
	
	if (start_value==""){
		url = url + "&start=" + 0;
	}
	else{
	    url = url.replace("start=" + start_value, "start=0");
	}
	
	location.href = url;
}

function SubmitBasket(txtIDs) {
    var elHiddenBasket = document.getElementById("hidBasket");

    var txtid;
    var valueProducts = "";

    var ids = txtIDs.substring(1).split("|");
    for (i = 0; i < ids.length; i++) {
        txtid = document.getElementById(ids[i]);
        if (document.getElementById(ids[i]).value != "") {
            valueProducts += "|" + ids[i] + "=" + document.getElementById(ids[i]).value;
        }
    }
    elHiddenBasket.setAttribute("value", valueProducts.substring(1));    
}