function check_value( value ){
	  if( value.value > 50 ){
	    //
		set_error_div("Your maximum order number is 50 please choose a lower number.");
		disableForm("form_file_select");
		//alert("error");
	  }else{
	    set_error_div("");
	  }
	}

	function set_error_div( value ){
		// substitute new invoice HTML content into "portletcontent" div tag
		var content = value;
		var div = document.getElementById("error_class");
		div.innerHTML = content;
	}

	function disableForm(theform) {
		if (document.all || document.getElementById) {
			for (i = 0; i < theform.length; i++) {
				var tempobj = theform.elements[i];
				if (tempobj.type.toLowerCase() == "submit"){
				tempobj.disabled = true;
				}
			}
		}
	}

	function check_form(){
		var div = document.getElementById("error_class");

	    if(div.innerHTML == ""){
			document.form_file_select.submit();
		}
	}
	function back_to_main(){
		var div = document.getElementById("error_class");
	    if(div.innerHTML == ""){	
			document.form_confirm.page_id.value = 0;
			document.form_confirm.act.value = 'return';	
			document.form_confirm.submit();	
		}
	}
	function launch_feedback(){
		turl = "feedback.php";
		w = 750;
		h = 450;
		x = (screen.width - w) /2;
		y = (screen.height - h) /2;
		popWin = window.open(turl,"imagepreview","top="+y+",left="+x+",width="+w+",height="+h+",scrollbars=yes");
		popWin.focus();

}