// javascript document

// valid provider selection from index

var user = navigator.userAgent;
if(user.indexOf("MSIE") != -1) {
	document.write("<link rel=\"stylesheet\" type=\"text/css\" href=../../js/\"styles/win_ie.css\" />");	
}

// utilities

// focus the first text input elemnt

function formFocus() {
	var numElements = document.forms[0].elements.length;
	for(i=0; i<numElements; i++) {
		if(document.forms[0].elements[i].type == "text") {
			document.forms[0].elements[i].focus();
			break;
		}
	}
}

// write qry updates to layer

function writeLayer(ID,parentID,sText) {
	if (document.layers) {
		var oLayer;
		if(parentID) {
			oLayer = eval("document." + parentID + ".document." + ID + ".document"); 
		} else {
			oLayer = document.layers[ID].document; 
		} 
		oLayer.open(); 
		oLayer.write(sText); 
		oLayer.close(); 
 	} 
	else if(parseInt(navigator.appVersion) >= 5 && navigator.appName=="Netscape") {
		document.getElementById(ID).innerHTML = sText;
	} 
 	else if(document.all) document.all[ID].innerHTML = sText;
} 

// toggle visibility of div content (cool)
// based on script from stcroixrods.com

function toggleBlock(targetID, indicatorID) {
if (document.getElementById(targetID).style.display.match('none')) {
	document.getElementById(targetID).style.display = 'block';
	document.getElementById(indicatorID).style.display = 'none';
	document.getElementById(indicatorID).blur;
} else {
	document.getElementById(targetID).style.display = 'none';
	document.getElementById(indicatorID).style.display = 'block';
	document.getElementById(indicatorID).blur;
   }
}

// This code was written by Tyler Akins and has been placed in the
// public domain.  It would be nice if you left this header intact.
// Base64 code from Tyler Akins -- http://rumkin.com

var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";

function encode64(input) {
   var output = "";
   var chr1, chr2, chr3;
   var enc1, enc2, enc3, enc4;
   var i = 0;
   do {
      chr1 = input.charCodeAt(i++);
      chr2 = input.charCodeAt(i++);
      chr3 = input.charCodeAt(i++);
      enc1 = chr1 >> 2;
      enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
      enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
      enc4 = chr3 & 63;
      if (isNaN(chr2)) {
         enc3 = enc4 = 64;
      } else if (isNaN(chr3)) {
         enc4 = 64;
      }
      output = output + keyStr.charAt(enc1) + keyStr.charAt(enc2) + 
         keyStr.charAt(enc3) + keyStr.charAt(enc4);
   } while (i < input.length);
   return output;
}

function decode64(input) {
   var output = "";
   var chr1, chr2, chr3;
   var enc1, enc2, enc3, enc4;
   var i = 0;
   // remove all characters that are not A-Z, a-z, 0-9, +, /, or =
   input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
   do {
      enc1 = keyStr.indexOf(input.charAt(i++));
      enc2 = keyStr.indexOf(input.charAt(i++));
      enc3 = keyStr.indexOf(input.charAt(i++));
      enc4 = keyStr.indexOf(input.charAt(i++));
      chr1 = (enc1 << 2) | (enc2 >> 4);
      chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
      chr3 = ((enc3 & 3) << 6) | enc4;
      output = output + String.fromCharCode(chr1);
      if (enc3 != 64) {
         output = output + String.fromCharCode(chr2);
      }
      if (enc4 != 64) {
         output = output + String.fromCharCode(chr3);
      }
   } while (i < input.length);
   return output;
}