/*
  $Id: general.js,v 1.3 2003/02/10 22:30:55 hpdl Exp $

  osCommerce, Open Source E-Commerce Solutions
  http://www.oscommerce.com

  Copyright (c) 2003 osCommerce

  Released under the GNU General Public License
*/

/*
function popup(url, width, height) {
  window.open(url,'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,copyhistory=no,width='+ width +',height='+ height +',screenX=150,screenY=150,top=150,left=150')
}*/
function popupshipping(title,text)
					{
					var sOption="toolbar=no,location=no,directories=no,menubar=no,";
					sOption+="scrollbars=no,width=300,height=150,left=100,top=25";    
					var winprint=window.open("","",sOption);
					winprint.document.open();
					winprint.document.write("<HTML><Body style=\"font-family:tahoma; font-size:11px\">");
					winprint.document.write(title+"<br>");
					winprint.document.write(text);
					winprint.document.write("</Body></HTML>")	
					winprint.document.close();
					winprint.focus();
					}
function SetFocus(TargetFormName) {
  var target = 0;
  if (TargetFormName != "") {
    for (i=0; i<document.forms.length; i++) {
      if (document.forms[i].name == TargetFormName) {
        target = i;
        break;
      }
    }
  }

  var TargetForm = document.forms[target];
    
  for (i=0; i<TargetForm.length; i++) {
    if ( (TargetForm.elements[i].type != "image") && (TargetForm.elements[i].type != "hidden") && (TargetForm.elements[i].type != "reset") && (TargetForm.elements[i].type != "submit") ) {
      TargetForm.elements[i].focus();

      if ( (TargetForm.elements[i].type == "text") || (TargetForm.elements[i].type == "password") ) {
        TargetForm.elements[i].select();
      }

      break;
    }
  }
}

function RemoveFormatString(TargetElement, FormatString) {
  if (TargetElement.value == FormatString) {
    TargetElement.value = "";
  }

  TargetElement.select();
}

function CheckDateRange(from, to) {
  if (Date.parse(from.value) <= Date.parse(to.value)) {
    return true;
  } else {
    return false;
  }
}

function IsValidDate(DateToCheck, FormatString) {
  var strDateToCheck;
  var strDateToCheckArray;
  var strFormatArray;
  var strFormatString;
  var strDay;
  var strMonth;
  var strYear;
  var intday;
  var intMonth;
  var intYear;
  var intDateSeparatorIdx = -1;
  var intFormatSeparatorIdx = -1;
  var strSeparatorArray = new Array("-"," ","/",".");
  var strMonthArray = new Array("jan","feb","mar","apr","may","jun","jul","aug","sep","oct","nov","dec");
  var intDaysArray = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);

  strDateToCheck = DateToCheck.toLowerCase();
  strFormatString = FormatString.toLowerCase();
  
  if (strDateToCheck.length != strFormatString.length) {
    return false;
  }

  for (i=0; i<strSeparatorArray.length; i++) {
    if (strFormatString.indexOf(strSeparatorArray[i]) != -1) {
      intFormatSeparatorIdx = i;
      break;
    }
  }

  for (i=0; i<strSeparatorArray.length; i++) {
    if (strDateToCheck.indexOf(strSeparatorArray[i]) != -1) {
      intDateSeparatorIdx = i;
      break;
    }
  }

  if (intDateSeparatorIdx != intFormatSeparatorIdx) {
    return false;
  }

  if (intDateSeparatorIdx != -1) {
    strFormatArray = strFormatString.split(strSeparatorArray[intFormatSeparatorIdx]);
    if (strFormatArray.length != 3) {
      return false;
    }

    strDateToCheckArray = strDateToCheck.split(strSeparatorArray[intDateSeparatorIdx]);
    if (strDateToCheckArray.length != 3) {
      return false;
    }

    for (i=0; i<strFormatArray.length; i++) {
      if (strFormatArray[i] == 'mm' || strFormatArray[i] == 'mmm') {
        strMonth = strDateToCheckArray[i];
      }

      if (strFormatArray[i] == 'dd') {
        strDay = strDateToCheckArray[i];
      }

      if (strFormatArray[i] == 'yyyy') {
        strYear = strDateToCheckArray[i];
      }
    }
  } else {
    if (FormatString.length > 7) {
      if (strFormatString.indexOf('mmm') == -1) {
        strMonth = strDateToCheck.substring(strFormatString.indexOf('mm'), 2);
      } else {
        strMonth = strDateToCheck.substring(strFormatString.indexOf('mmm'), 3);
      }

      strDay = strDateToCheck.substring(strFormatString.indexOf('dd'), 2);
      strYear = strDateToCheck.substring(strFormatString.indexOf('yyyy'), 2);
    } else {
      return false;
    }
  }

  if (strYear.length != 4) {
    return false;
  }

  intday = parseInt(strDay, 10);
  if (isNaN(intday)) {
    return false;
  }
  if (intday < 1) {
    return false;
  }

  intMonth = parseInt(strMonth, 10);
  if (isNaN(intMonth)) {
    for (i=0; i<strMonthArray.length; i++) {
      if (strMonth == strMonthArray[i]) {
        intMonth = i+1;
        break;
      }
    }
    if (isNaN(intMonth)) {
      return false;
    }
  }
  if (intMonth > 12 || intMonth < 1) {
    return false;
  }

  intYear = parseInt(strYear, 10);
  if (isNaN(intYear)) {
    return false;
  }
  if (IsLeapYear(intYear) == true) {
    intDaysArray[1] = 29;
  }

  if (intday > intDaysArray[intMonth - 1]) {
    return false;
  }
  
  return true;
}

function IsLeapYear(intYear) {
  if (intYear % 100 == 0) {
    if (intYear % 400 == 0) {
      return true;
    }
  } else {
    if ((intYear % 4) == 0) {
      return true;
    }
  }

  return false;
}
/*****************change opacity**************/

function opacity(id, opacStart, opacEnd, millisec) {
   	//speed for each frame
 	var speed = Math.round(millisec / 100);
   	var timer = 0;

   	//determine the direction for the blending, if start and end are the same nothing happens
   	if(opacStart > opacEnd) {
     		for(i = opacStart; i >= opacEnd; i--) {
     	    	setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
     	       	timer++;
      	  	}
   		} else if(opacStart < opacEnd) {
        	for(i = opacStart; i <= opacEnd; i++)
            	{
            	setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            	timer++;
        	}
   		}
	}


function changeOpac(opacity, id) {
	//change the opacity for different browsers
    var object = document.getElementById(id).style;
    object.opacity = (opacity / 100);
    object.MozOpacity = (opacity / 100);
    object.KhtmlOpacity = (opacity / 100);
    object.filter = "alpha(opacity=" + opacity + ")";
}

/*********************display banner ***********************************/
function jump(number, color_sel, color_norm){
		color_sel=color_sel?color_sel:'#cccccc'
		color_norm=color_norm?color_norm:'#ffffff'
		//jump to specific numbers
		clearTimeout(display);
		show=0; 
		hide=0;
		for(cnt=1; cnt<=count; cnt++){
			document.getElementById('banner'+cnt).style.display='none'
			document.getElementById('number'+cnt).style.color=color_norm
		}
		display_banner(number, color_sel, color_norm);
	}
	
	function display_banner(a, color_sel, color_norm, with_num){
		color_sel=color_sel ? color_sel : '#cccccc'
		color_norm=color_norm ? color_norm : '#ffffff'
		with_num=with_num ?  with_num : 0

	//display banners
		if(a<=count){
			//document.getElementById('number'+a).innerHTML=a
			if(show==1){
				if(hide==1){
					//hide picture
					document.getElementById('banner'+a).style.display='none'
					hide=0
					a++;
					show=0
					display_banner(a, color_sel, color_norm, with_num)
				}else{
					//change the opacity of the current picture to 0
					changeOpac(100, 'banner'+a)
					opacity('banner'+a, 100, 0, 500)
					hide=1
					if(with_num!=0){
						document.getElementById('number'+a).style.color=color_norm
					}
						display=setTimeout("display_banner("+a+", '"+color_sel+"', '"+color_norm+"',"+with_num+")", 500);
				}
			}else{
					//show picture
					show=1
					document.getElementById('banner'+a).style.display='block'
					if(with_num!=0){
						document.getElementById('number'+a).style.color=color_sel
					}
					changeOpac(0, 'banner'+a)
					opacity('banner'+a, 0, 100, 500)
					display=setTimeout("display_banner("+a+", '"+color_sel+"', '"+color_norm+"',"+with_num+")", 5000);
			}
		}else{
			//go back to start
			a=1
			show=0
			display_banner(a, color_sel, color_norm, with_num)
		}		
	} 
/*---------------------------- end display banner ---------------------*/