function checkEngines(b)
				 {
					var ipts = document.getElementsByTagName("input");
					for(var i=0;i<ipts.length;i++)
					{
						if(ipts[i].type == "checkbox"&&ipts[i].name.toLowerCase().indexOf('checkbox_eng[]')!=-1)
						{
							ipts[i].checked = b;
						}
					}
				 }
				 function chkAll()
				 {
					var chk = true;
					var ipts = document.getElementsByTagName("input");
					for(var i=0;i<ipts.length;i++)
					{
						if(ipts[i].type == "checkbox"&&ipts[i].name.toLowerCase().indexOf('checkbox_eng[]')!=-1)
						{
							chk &= ipts[i].checked;
						}
					}
					document.getElementById('chk').checked = chk;
				 }
//				 chkAll();
 var reg_url = /^([\w-]+\.)+[\w-]+(\/[\w- ./?%&=]*)?$/;