function getURLVariable(strVarNameToSearch){ 
 if(location.search.substring(1)){ 
         // Get all the argument in the URL in a table 
         tbVar = location.search.substring(1).split('&'); 
         for(i=0 ; i<tbVar.length ; i++){ 
                 // Look for equal character 
                 intPosEgal = (tbVar[i].indexOf("=",0)); 
                 // Get the name of the variable 
                 strVarName = tbVar[i].substring(0,intPosEgal); 
                if(strVarNameToSearch == strVarName){ 
                         // Return the variable value 
                         return tbVar[i].substring(intPosEgal+1,tbVar[i].length); 
                 } 
         } 
 } 
 // variable not found 
 return "" 
} 




function Set_Cookie( name, value, expires, path, domain, secure ) { 
// set time, it's in milliseconds 
var today = new Date(); 
today.setTime( today.getTime() ); 
/* 
if the expires variable is set, make the correct 
expires time, the current script below will set 
it for x number of days, to make it for hours, 
delete * 24, for minutes, delete * 60 * 24 
*/ 
if ( expires ) 
{ 
expires = expires * 1000 * 60 * 60 * 24; 
} 
var expires_date = new Date( today.getTime() + (expires) ); 
document.cookie = name + "=" +escape( value ) + 
( ( expires ) ? ";expires=" + expires_date.toGMTString() : "" ) + 
( ( path ) ? ";path=" + path : "" ) + 
( ( domain ) ? ";domain=" + domain : "" ) + 
( ( secure ) ? ";secure" : "" ); 
} 



// this function gets the cookie, if it exists 
function Get_Cookie( name ) { 
        
var start = document.cookie.indexOf( name + "=" ); 
if (start!=1){start = document.cookie.indexOf(" "+ name + "=" );}
if (start!=0){start = document.cookie.indexOf(""+ name + "=" );} 

var len = start + name.length + 1; 
if ( ( !start ) && 
(name != document.cookie.substring( 0, name.length ) ) ) 
{ 
return null; 
} 
if ( start == -1 ) return null; 
var end = document.cookie.indexOf( ";", len ); 
if ( end == -1 ) end = document.cookie.length; 

return unescape( document.cookie.substring( len, end ).replace('=','') ); 
} 
        

// this deletes the cookie when called 
function Delete_Cookie( name, path, domain ) { 
if ( Get_Cookie( name ) ) document.cookie = name + "=" + 
( ( path ) ? ";path=" + path : "") + 
( ( domain ) ? ";domain=" + domain : "" ) + 
";expires=Thu, 01-Jan-1970 00:00:01 GMT"; 
}