hello guys. i am new to whmcs coding, i have read already the rules and procedure on how to customize the header.tpl but still got same error. i have script that need to run on the header.tpl, with the {literal} tag i still didnt get the right result i am expecting. please little assistance and hints is really big help and appreciate. my codes goes like this:

Code:
{literal} 
<script type="text/javascript" src="includes/jscript/jquerymin.js"></script>
{/literal} 

{literal} 
<script type="text/javascript" src="includes/jscript/minified.js"></script>
{/literal} 

{literal} 
<script type="text/javascript" src="includes/jscript/jquery.js"></script>
{/literal}  

{literal}  
<script language="javascript" type="text/javascript">

function MM_jumpMenu(targ,selObj,restore){ 
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}


</script>
{/literal}

{literal} 
<script language="javascript">
{literal}
$(document).ready(function() {
	//On Hover Over
function megaHoverOver(){
    $(this).find(".sub").fadeTo('fast', 1).show(); //Find sub and fade it in
    (function($) {
        //Function to calculate total width of all ul's
        jQuery.fn.calcSubWidth = function() {
            rowWidth = 0;
            //Calculate row
            $(this).find("ul").each(function() { //for each ul...
                rowWidth += $(this).width(); //Add each ul's width together
            });
        };
    })(jQuery); 

    if ( $(this).find(".row").length > 0 ) { //If row exists...

        var biggestRow = 0;	

        $(this).find(".row").each(function() {	//for each row...
            $(this).calcSubWidth(); //Call function to calculate width of all ul's
            //Find biggest row
            if(rowWidth > biggestRow) {
                biggestRow = rowWidth;
            }
        });

        $(this).find(".sub").css({'width' :biggestRow}); //Set width
        $(this).find(".row:last").css({'margin':'0'});  //Kill last row's margin

    } else { //If row does not exist...

        $(this).calcSubWidth();  //Call function to calculate width of all ul's
        $(this).find(".sub").css({'width' : rowWidth}); //Set Width

    }
}
//On Hover Out
function megaHoverOut(){
  $(this).find(".sub").stop().fadeTo('fast', 0, function() { //Fade to 0 opactiy
      $(this).hide();  //after fading, hide it
  });
}
//Set custom configurations
var config = {
     sensitivity: 1, // number = sensitivity threshold (must be 1 or higher)
     interval: 1, // number = milliseconds for onMouseOver polling interval
     over: megaHoverOver, // function = onMouseOver callback (REQUIRED)
     timeout: 2, // number = milliseconds delay before onMouseOut
     out: megaHoverOut // function = onMouseOut callback (REQUIRED)
};

$("ul#topnav li .sub").css({'opacity':'0'}); //Fade sub nav to 0 opacity on default
$("ul#topnav li").hoverIntent(config); //Trigger Hover intent with custom configurations
});	
{/literal}
</script>
{/literal}

i have this thought that i might have problem with the directory placement.
my header.tpl is located at templates/newdesign and the script files is located outside the folder of template includes/jscript ....

i even try to put the file where the header.tpl is located but still no good.. please help me with this one thanks allot.